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THE ULTIMATE LIST OF GIS FORMATS AND GEOSPATIAL FILE ECW is a compressed image format typically for aerial and satellite imagery. This GIS file type is known for its high compression ratios while still maintaining quality contrast in images. ECW format was developed by ER Mapper, but it’s now owned by Hexagon Geospatial. Joint Photographic Experts Group JPEG2000. 15 FREE SATELLITE IMAGERY DATA SOURCES 3. NASA Earthdata Search. There’s a lot to like about NASA’s Earthdata Search, specifically for Earth science data discovery.Especially, the choices of satellite imagery is incredible. DERIVED DATA: Most of NASA’s Earth Data is an analysis product for the study of Earth Science. For example, it’s anything from the biosphere, cryosphere, hydrosphere or atmosphere. 10 FREE GIS DATA SOURCES: BEST GLOBAL RASTER AND VECTOR Bonus 1: FAO GeoNetwork. We’re going above and beyond our 10 free data sources here so this is a bit of a bonus. This one is the FAO GeoNetwork which is another portal of free GIS data from the United Nations. The focus of GeoNetwork is to improve global sustainabledevelopment.
WORLD GEODETIC SYSTEM (WGS84) The Global Positioning System uses the World Geodetic System (WGS84) as its reference coordinate system. It’s made up of a reference ellipsoid, a standard coordinate system, altitude data, and a geoid. Similar to the North American Datum of 1983 (NAD83), it uses the Earth’s center mass as the coordinate origin. 5 FREE HISTORICAL IMAGERY VIEWERS TO LEAP BACK IN THE PAST NASA Worldview. 5. Planet Labs. Aerial Orthoimagery for Historical Context. 1. . Google Earth Pro. Not only is Google a world leader in geocoded addressing, but you can leap to the past with its historical time slider. From satellite to aerial photography, GPS ACCURACY: HDOP, PDOP, GDOP, MULTIPATH & THE ATMOSPHERE GPS Accuracy: HDOP, PDOP, GDOP, Multipath & the Atmosphere. Have you ever wondered about your GPS accuracy?. A well-designed GPS receiver can achieve a horizontal accuracy of 3 meters or better.. For vertical accuracy, it can achieve an accuracy of 5 meters or better 95% of the time. Augmented GPS systems can provide sub-meter accuracy. 5 FREE GLOBAL DEM DATA SOURCES 3. . JAXA’s Global ALOS 3D World. ALOS World 3D is a 30-meter resolution digital surface model (DSM) captured by the Japan Aerospace Exploration Agency’s (JAXA). Recently, this DSM has been made available to the public. The neat thing about is that it is the most precise global-scale elevation data now. US ROAD MAP: INTERSTATE HIGHWAYS IN THE UNITED STATES About the map. This US road map displays major interstate highways, limited-access highways and principal roads in the United States of America. It highlights all 50 states and capital cities, including the nation’s capital city of Washington, DC. Both Hawaii and Alaska are insets in this US road map. Interstate highways have a bright red WHAT CAN YOU DO WITH A GIS DEGREE? The Alternative: GIS Diploma / Certification. If you want to earn a GIS degree, the American Association of Geographers (AAG) Guide to Geography Programs lists undergraduate and graduate geography programs in the United States, Canada, and Latin America. Furthermore, it includes degree requirements, curricula, faculty qualifications, and program specialties. 13 FREE GIS SOFTWARE OPTIONS: MAP THE WORLD IN OPEN SOURCE 5. ILWIS. Free GIS software users rejoice. Once commercial GIS software, now turned into open source GIS. ILWIS (Integrated Land and Water Information Management) is an oldie but a goodie.. The extinction-proof ILWIS is a free GIS software for planners,biologists, water
THE ULTIMATE LIST OF GIS FORMATS AND GEOSPATIAL FILE ECW is a compressed image format typically for aerial and satellite imagery. This GIS file type is known for its high compression ratios while still maintaining quality contrast in images. ECW format was developed by ER Mapper, but it’s now owned by Hexagon Geospatial. Joint Photographic Experts Group JPEG2000. 15 FREE SATELLITE IMAGERY DATA SOURCES 3. NASA Earthdata Search. There’s a lot to like about NASA’s Earthdata Search, specifically for Earth science data discovery.Especially, the choices of satellite imagery is incredible. DERIVED DATA: Most of NASA’s Earth Data is an analysis product for the study of Earth Science. For example, it’s anything from the biosphere, cryosphere, hydrosphere or atmosphere. 10 FREE GIS DATA SOURCES: BEST GLOBAL RASTER AND VECTOR Bonus 1: FAO GeoNetwork. We’re going above and beyond our 10 free data sources here so this is a bit of a bonus. This one is the FAO GeoNetwork which is another portal of free GIS data from the United Nations. The focus of GeoNetwork is to improve global sustainabledevelopment.
WORLD GEODETIC SYSTEM (WGS84) The Global Positioning System uses the World Geodetic System (WGS84) as its reference coordinate system. It’s made up of a reference ellipsoid, a standard coordinate system, altitude data, and a geoid. Similar to the North American Datum of 1983 (NAD83), it uses the Earth’s center mass as the coordinate origin. 5 FREE HISTORICAL IMAGERY VIEWERS TO LEAP BACK IN THE PAST NASA Worldview. 5. Planet Labs. Aerial Orthoimagery for Historical Context. 1. . Google Earth Pro. Not only is Google a world leader in geocoded addressing, but you can leap to the past with its historical time slider. From satellite to aerial photography, GPS ACCURACY: HDOP, PDOP, GDOP, MULTIPATH & THE ATMOSPHERE GPS Accuracy: HDOP, PDOP, GDOP, Multipath & the Atmosphere. Have you ever wondered about your GPS accuracy?. A well-designed GPS receiver can achieve a horizontal accuracy of 3 meters or better.. For vertical accuracy, it can achieve an accuracy of 5 meters or better 95% of the time. Augmented GPS systems can provide sub-meter accuracy. 5 FREE GLOBAL DEM DATA SOURCES 3. . JAXA’s Global ALOS 3D World. ALOS World 3D is a 30-meter resolution digital surface model (DSM) captured by the Japan Aerospace Exploration Agency’s (JAXA). Recently, this DSM has been made available to the public. The neat thing about is that it is the most precise global-scale elevation data now. US ROAD MAP: INTERSTATE HIGHWAYS IN THE UNITED STATES About the map. This US road map displays major interstate highways, limited-access highways and principal roads in the United States of America. It highlights all 50 states and capital cities, including the nation’s capital city of Washington, DC. Both Hawaii and Alaska are insets in this US road map. Interstate highways have a bright red THE ULTIMATE LIST OF GIS FORMATS AND GEOSPATIAL FILE ECW is a compressed image format typically for aerial and satellite imagery. This GIS file type is known for its high compression ratios while still maintaining quality contrast in images. ECW format was developed by ER Mapper, but it’s now owned by Hexagon Geospatial. Joint Photographic Experts Group JPEG2000. 1000 GIS APPLICATIONS & USES One year in the making, these are some of your favorite GIS applications you haven’t heard of yet: GIS student project ideas, GIS case studies, GIS projects, GIS uses – From over 50 industries, this jam-packed guide of 1000 GIS applications will open your mind to our amazing planet and its interconnectivity. Table of Contents show. 13 FREE GIS SOFTWARE OPTIONS: MAP THE WORLD IN OPEN SOURCE 5. ILWIS. Free GIS software users rejoice. Once commercial GIS software, now turned into open source GIS. ILWIS (Integrated Land and Water Information Management) is an oldie but a goodie.. The extinction-proof ILWIS is a free GIS software for planners,biologists, water
LATITUDE, LONGITUDE AND COORDINATE SYSTEM GRIDS Map Coordinate Systems. You can give any location on Earth latitude and longitude coordinates. The field of study that measures the shape and size of the Earth is geodesy.Geodesists use coordinate reference systems such as WGS84, NAD27 and NAD83.In each coordinate system, geodists use mathematics to give each position on Earth a uniquecoordinate.
15 FREE SATELLITE IMAGERY DATA SOURCES 3. NASA Earthdata Search. There’s a lot to like about NASA’s Earthdata Search, specifically for Earth science data discovery.Especially, the choices of satellite imagery is incredible. DERIVED DATA: Most of NASA’s Earth Data is an analysis product for the study of Earth Science. For example, it’s anything from the biosphere, cryosphere, hydrosphere or atmosphere. VECTOR VS RASTER: WHAT'S THE DIFFERENCE BETWEEN GIS What GIS data types exist? Spatial data observations focus on locations.. Every house, every tree, every city has its own unique latitude and longitude coordinates.. The two primary types of spatial data are vector and raster data in GIS. But what is the difference between raster and vector data? GEODETIC DATUMS: NAD 27, NAD 83 AND WGS84 NAD 27 and NAD 83 provide a frame of reference for latitude and longitude locations on Earth. Surveyors now rely almost exclusively on the Global Positioning System (GPS) to identify locations on the Earth and incorporate them into existing geodetic datums. For example, NAD27, NAD83, and WGS84 are the most common geodetic datums in NorthAmerica.
USGS EARTH EXPLORER: DOWNLOAD FREE LANDSAT IMAGERY Step 1 Set your area of interest in the “Search Criteria” tab. Users can double-click the browser to create regions of interest. The region of interest (ROI) is the geographic boundary that limits the search to acquire data.. Pro Tip: The easiest thing to do is just to zoom into your area of interest. If you want to download free Landsat imagery for Hawaii, zoom into that area. 27 DIFFERENCES BETWEEN ARCGIS AND QGIS It’s a head-to-head GIS software showdown with the star-studded lineup in the GIS industry- ArcGIS vs QGIS. Discover the differences between ArcGIS and QGIS MAGNETIC NORTH VS GEOGRAPHIC (TRUE) NORTH POLE The Geographic North Pole differs from the Magnetic North Pole by about 500 kilometers. The Geographic North Pole is where lines of longitudes converge into what we call the North Pole. The Magnetic Pole is a point in Northern Canada where the northern lines of attraction enter the Earth. A compass needle will point to thedirection of the
THE ULTIMATE LIST OF GIS FORMATS AND GEOSPATIAL FILE15 FREE SATELLITE IMAGERY DATA SOURCESVECTOR VS RASTERCARTOGRAPHY ECW is a compressed image format typically for aerial and satellite imagery. This GIS file type is known for its high compression ratios while still maintaining quality contrast in images. ECW format was developed by ER Mapper, but it’s now owned by Hexagon Geospatial. Joint Photographic Experts Group JPEG2000. 1000 GIS APPLICATIONS & USES WHAT CAN YOU DO WITH A GIS DEGREE? The Alternative: GIS Diploma / Certification. If you want to earn a GIS degree, the American Association of Geographers (AAG) Guide to Geography Programs lists undergraduate and graduate geography programs in the United States, Canada, and Latin America. Furthermore, it includes degree requirements, curricula, faculty qualifications, and program specialties. 13 FREE GIS SOFTWARE OPTIONS: MAP THE WORLD IN OPEN SOURCE 5. ILWIS. Free GIS software users rejoice. Once commercial GIS software, now turned into open source GIS. ILWIS (Integrated Land and Water Information Management) is an oldie but a goodie.. The extinction-proof ILWIS is a free GIS software for planners,biologists, water
WORLD GEODETIC SYSTEM (WGS84) The Global Positioning System uses the World Geodetic System (WGS84) as its reference coordinate system. It’s made up of a reference ellipsoid, a standard coordinate system, altitude data, and a geoid. Similar to the North American Datum of 1983 (NAD83), it uses the Earth’s center mass as the coordinate origin. 15 FREE SATELLITE IMAGERY DATA SOURCES 3. NASA Earthdata Search. There’s a lot to like about NASA’s Earthdata Search, specifically for Earth science data discovery.Especially, the choices of satellite imagery is incredible. DERIVED DATA: Most of NASA’s Earth Data is an analysis product for the study of Earth Science. For example, it’s anything from the biosphere, cryosphere, hydrosphere or atmosphere. LATITUDE, LONGITUDE AND COORDINATE SYSTEM GRIDS GPS ACCURACY: HDOP, PDOP, GDOP, MULTIPATH & THE ATMOSPHERE GPS Accuracy: HDOP, PDOP, GDOP, Multipath & the Atmosphere. Have you ever wondered about your GPS accuracy?. A well-designed GPS receiver can achieve a horizontal accuracy of 3 meters or better.. For vertical accuracy, it can achieve an accuracy of 5 meters or better 95% of the time. Augmented GPS systems can provide sub-meter accuracy. 5 FREE HISTORICAL IMAGERY VIEWERS TO LEAP BACK IN THE PAST NASA Worldview. 5. Planet Labs. Aerial Orthoimagery for Historical Context. 1. . Google Earth Pro. Not only is Google a world leader in geocoded addressing, but you can leap to the past with its historical time slider. From satellite to aerial photography, US ROAD MAP: INTERSTATE HIGHWAYS IN THE UNITED STATES About the map. This US road map displays major interstate highways, limited-access highways and principal roads in the United States of America. It highlights all 50 states and capital cities, including the nation’s capital city of Washington, DC. Both Hawaii and Alaska are insets in this US road map. Interstate highways have a bright red THE ULTIMATE LIST OF GIS FORMATS AND GEOSPATIAL FILE15 FREE SATELLITE IMAGERY DATA SOURCESVECTOR VS RASTERCARTOGRAPHY ECW is a compressed image format typically for aerial and satellite imagery. This GIS file type is known for its high compression ratios while still maintaining quality contrast in images. ECW format was developed by ER Mapper, but it’s now owned by Hexagon Geospatial. Joint Photographic Experts Group JPEG2000. 1000 GIS APPLICATIONS & USES WHAT CAN YOU DO WITH A GIS DEGREE? The Alternative: GIS Diploma / Certification. If you want to earn a GIS degree, the American Association of Geographers (AAG) Guide to Geography Programs lists undergraduate and graduate geography programs in the United States, Canada, and Latin America. Furthermore, it includes degree requirements, curricula, faculty qualifications, and program specialties. 13 FREE GIS SOFTWARE OPTIONS: MAP THE WORLD IN OPEN SOURCE 5. ILWIS. Free GIS software users rejoice. Once commercial GIS software, now turned into open source GIS. ILWIS (Integrated Land and Water Information Management) is an oldie but a goodie.. The extinction-proof ILWIS is a free GIS software for planners,biologists, water
WORLD GEODETIC SYSTEM (WGS84) The Global Positioning System uses the World Geodetic System (WGS84) as its reference coordinate system. It’s made up of a reference ellipsoid, a standard coordinate system, altitude data, and a geoid. Similar to the North American Datum of 1983 (NAD83), it uses the Earth’s center mass as the coordinate origin. 15 FREE SATELLITE IMAGERY DATA SOURCES 3. NASA Earthdata Search. There’s a lot to like about NASA’s Earthdata Search, specifically for Earth science data discovery.Especially, the choices of satellite imagery is incredible. DERIVED DATA: Most of NASA’s Earth Data is an analysis product for the study of Earth Science. For example, it’s anything from the biosphere, cryosphere, hydrosphere or atmosphere. LATITUDE, LONGITUDE AND COORDINATE SYSTEM GRIDS GPS ACCURACY: HDOP, PDOP, GDOP, MULTIPATH & THE ATMOSPHERE GPS Accuracy: HDOP, PDOP, GDOP, Multipath & the Atmosphere. Have you ever wondered about your GPS accuracy?. A well-designed GPS receiver can achieve a horizontal accuracy of 3 meters or better.. For vertical accuracy, it can achieve an accuracy of 5 meters or better 95% of the time. Augmented GPS systems can provide sub-meter accuracy. 5 FREE HISTORICAL IMAGERY VIEWERS TO LEAP BACK IN THE PAST NASA Worldview. 5. Planet Labs. Aerial Orthoimagery for Historical Context. 1. . Google Earth Pro. Not only is Google a world leader in geocoded addressing, but you can leap to the past with its historical time slider. From satellite to aerial photography, US ROAD MAP: INTERSTATE HIGHWAYS IN THE UNITED STATES About the map. This US road map displays major interstate highways, limited-access highways and principal roads in the United States of America. It highlights all 50 states and capital cities, including the nation’s capital city of Washington, DC. Both Hawaii and Alaska are insets in this US road map. Interstate highways have a bright red 1000 GIS APPLICATIONS & USES One year in the making, these are some of your favorite GIS applications you haven’t heard of yet: GIS student project ideas, GIS case studies, GIS projects, GIS uses – From over 50 industries, this jam-packed guide of 1000 GIS applications will open your mind to our amazing planet and its interconnectivity. Table of Contents show. 13 FREE GIS SOFTWARE OPTIONS: MAP THE WORLD IN OPEN SOURCE 5. ILWIS. Free GIS software users rejoice. Once commercial GIS software, now turned into open source GIS. ILWIS (Integrated Land and Water Information Management) is an oldie but a goodie.. The extinction-proof ILWIS is a free GIS software for planners,biologists, water
LATITUDE, LONGITUDE AND COORDINATE SYSTEM GRIDS Map Coordinate Systems. You can give any location on Earth latitude and longitude coordinates. The field of study that measures the shape and size of the Earth is geodesy.Geodesists use coordinate reference systems such as WGS84, NAD27 and NAD83.In each coordinate system, geodists use mathematics to give each position on Earth a uniquecoordinate.
15 FREE SATELLITE IMAGERY DATA SOURCES 3. NASA Earthdata Search. There’s a lot to like about NASA’s Earthdata Search, specifically for Earth science data discovery.Especially, the choices of satellite imagery is incredible. DERIVED DATA: Most of NASA’s Earth Data is an analysis product for the study of Earth Science. For example, it’s anything from the biosphere, cryosphere, hydrosphere or atmosphere. 10 FREE GIS DATA SOURCES: BEST GLOBAL RASTER AND VECTOR Bonus 1: FAO GeoNetwork. We’re going above and beyond our 10 free data sources here so this is a bit of a bonus. This one is the FAO GeoNetwork which is another portal of free GIS data from the United Nations. The focus of GeoNetwork is to improve global sustainabledevelopment.
5 FREE GLOBAL DEM DATA SOURCES 3. . JAXA’s Global ALOS 3D World. ALOS World 3D is a 30-meter resolution digital surface model (DSM) captured by the Japan Aerospace Exploration Agency’s (JAXA). Recently, this DSM has been made available to the public. The neat thing about is that it is the most precise global-scale elevation data now. VECTOR VS RASTER: WHAT'S THE DIFFERENCE BETWEEN GIS What GIS data types exist? Spatial data observations focus on locations.. Every house, every tree, every city has its own unique latitude and longitude coordinates.. The two primary types of spatial data are vector and raster data in GIS. But what is the difference between raster and vector data? GEODETIC DATUMS: NAD 27, NAD 83 AND WGS84 NAD 27 and NAD 83 provide a frame of reference for latitude and longitude locations on Earth. Surveyors now rely almost exclusively on the Global Positioning System (GPS) to identify locations on the Earth and incorporate them into existing geodetic datums. For example, NAD27, NAD83, and WGS84 are the most common geodetic datums in NorthAmerica.
27 DIFFERENCES BETWEEN ARCGIS AND QGIS It’s a head-to-head GIS software showdown with the star-studded lineup in the GIS industry- ArcGIS vs QGIS. Discover the differences between ArcGIS and QGIS MAGNETIC NORTH VS GEOGRAPHIC (TRUE) NORTH POLE The Geographic North Pole differs from the Magnetic North Pole by about 500 kilometers. The Geographic North Pole is where lines of longitudes converge into what we call the North Pole. The Magnetic Pole is a point in Northern Canada where the northern lines of attraction enter the Earth. A compass needle will point to thedirection of the
13 FREE GIS SOFTWARE OPTIONS: MAP THE WORLD IN OPEN SOURCE 5. ILWIS. Free GIS software users rejoice. Once commercial GIS software, now turned into open source GIS. ILWIS (Integrated Land and Water Information Management) is an oldie but a goodie.. The extinction-proof ILWIS is a free GIS software for planners,biologists, water
WHAT CAN YOU DO WITH A GIS DEGREE? The Alternative: GIS Diploma / Certification. If you want to earn a GIS degree, the American Association of Geographers (AAG) Guide to Geography Programs lists undergraduate and graduate geography programs in the United States, Canada, and Latin America. Furthermore, it includes degree requirements, curricula, faculty qualifications, and program specialties. THE ULTIMATE LIST OF GIS FORMATS AND GEOSPATIAL FILE ECW is a compressed image format typically for aerial and satellite imagery. This GIS file type is known for its high compression ratios while still maintaining quality contrast in images. ECW format was developed by ER Mapper, but it’s now owned by Hexagon Geospatial. Joint Photographic Experts Group JPEG2000. 10 FREE GIS DATA SOURCES: BEST GLOBAL RASTER AND VECTOR Bonus 1: FAO GeoNetwork. We’re going above and beyond our 10 free data sources here so this is a bit of a bonus. This one is the FAO GeoNetwork which is another portal of free GIS data from the United Nations. The focus of GeoNetwork is to improve global sustainabledevelopment.
WORLD GEODETIC SYSTEM (WGS84) The Global Positioning System uses the World Geodetic System (WGS84) as its reference coordinate system. It’s made up of a reference ellipsoid, a standard coordinate system, altitude data, and a geoid. Similar to the North American Datum of 1983 (NAD83), it uses the Earth’s center mass as the coordinate origin. 15 FREE SATELLITE IMAGERY DATA SOURCES 3. NASA Earthdata Search. There’s a lot to like about NASA’s Earthdata Search, specifically for Earth science data discovery.Especially, the choices of satellite imagery is incredible. DERIVED DATA: Most of NASA’s Earth Data is an analysis product for the study of Earth Science. For example, it’s anything from the biosphere, cryosphere, hydrosphere or atmosphere. 5 FREE HISTORICAL IMAGERY VIEWERS TO LEAP BACK IN THE PAST NASA Worldview. 5. Planet Labs. Aerial Orthoimagery for Historical Context. 1. . Google Earth Pro. Not only is Google a world leader in geocoded addressing, but you can leap to the past with its historical time slider. From satellite to aerial photography, 5 FREE GLOBAL DEM DATA SOURCES 3. . JAXA’s Global ALOS 3D World. ALOS World 3D is a 30-meter resolution digital surface model (DSM) captured by the Japan Aerospace Exploration Agency’s (JAXA). Recently, this DSM has been made available to the public. The neat thing about is that it is the most precise global-scale elevation data now. US ROAD MAP: INTERSTATE HIGHWAYS IN THE UNITED STATES About the map. This US road map displays major interstate highways, limited-access highways and principal roads in the United States of America. It highlights all 50 states and capital cities, including the nation’s capital city of Washington, DC. Both Hawaii and Alaska are insets in this US road map. Interstate highways have a bright red WHAT IS NDVI (NORMALIZED DIFFERENCE VEGETATION INDEX Normalized Difference Vegetation Index (NDVI) quantifies vegetation by measuring the difference between near-infrared (which vegetation strongly reflects) and red light (which vegetation absorbs). NDVI always ranges from -1 to +1. But there isn’t a distinct boundary for each type of land cover. For example, when you have negative values,it
13 FREE GIS SOFTWARE OPTIONS: MAP THE WORLD IN OPEN SOURCE 5. ILWIS. Free GIS software users rejoice. Once commercial GIS software, now turned into open source GIS. ILWIS (Integrated Land and Water Information Management) is an oldie but a goodie.. The extinction-proof ILWIS is a free GIS software for planners,biologists, water
WHAT CAN YOU DO WITH A GIS DEGREE? The Alternative: GIS Diploma / Certification. If you want to earn a GIS degree, the American Association of Geographers (AAG) Guide to Geography Programs lists undergraduate and graduate geography programs in the United States, Canada, and Latin America. Furthermore, it includes degree requirements, curricula, faculty qualifications, and program specialties. THE ULTIMATE LIST OF GIS FORMATS AND GEOSPATIAL FILE ECW is a compressed image format typically for aerial and satellite imagery. This GIS file type is known for its high compression ratios while still maintaining quality contrast in images. ECW format was developed by ER Mapper, but it’s now owned by Hexagon Geospatial. Joint Photographic Experts Group JPEG2000. 10 FREE GIS DATA SOURCES: BEST GLOBAL RASTER AND VECTOR Bonus 1: FAO GeoNetwork. We’re going above and beyond our 10 free data sources here so this is a bit of a bonus. This one is the FAO GeoNetwork which is another portal of free GIS data from the United Nations. The focus of GeoNetwork is to improve global sustainabledevelopment.
WORLD GEODETIC SYSTEM (WGS84) The Global Positioning System uses the World Geodetic System (WGS84) as its reference coordinate system. It’s made up of a reference ellipsoid, a standard coordinate system, altitude data, and a geoid. Similar to the North American Datum of 1983 (NAD83), it uses the Earth’s center mass as the coordinate origin. 15 FREE SATELLITE IMAGERY DATA SOURCES 3. NASA Earthdata Search. There’s a lot to like about NASA’s Earthdata Search, specifically for Earth science data discovery.Especially, the choices of satellite imagery is incredible. DERIVED DATA: Most of NASA’s Earth Data is an analysis product for the study of Earth Science. For example, it’s anything from the biosphere, cryosphere, hydrosphere or atmosphere. 5 FREE HISTORICAL IMAGERY VIEWERS TO LEAP BACK IN THE PAST NASA Worldview. 5. Planet Labs. Aerial Orthoimagery for Historical Context. 1. . Google Earth Pro. Not only is Google a world leader in geocoded addressing, but you can leap to the past with its historical time slider. From satellite to aerial photography, 5 FREE GLOBAL DEM DATA SOURCES 3. . JAXA’s Global ALOS 3D World. ALOS World 3D is a 30-meter resolution digital surface model (DSM) captured by the Japan Aerospace Exploration Agency’s (JAXA). Recently, this DSM has been made available to the public. The neat thing about is that it is the most precise global-scale elevation data now. US ROAD MAP: INTERSTATE HIGHWAYS IN THE UNITED STATES About the map. This US road map displays major interstate highways, limited-access highways and principal roads in the United States of America. It highlights all 50 states and capital cities, including the nation’s capital city of Washington, DC. Both Hawaii and Alaska are insets in this US road map. Interstate highways have a bright red WHAT IS NDVI (NORMALIZED DIFFERENCE VEGETATION INDEX Normalized Difference Vegetation Index (NDVI) quantifies vegetation by measuring the difference between near-infrared (which vegetation strongly reflects) and red light (which vegetation absorbs). NDVI always ranges from -1 to +1. But there isn’t a distinct boundary for each type of land cover. For example, when you have negative values,it
13 FREE GIS SOFTWARE OPTIONS: MAP THE WORLD IN OPEN SOURCE 5. ILWIS. Free GIS software users rejoice. Once commercial GIS software, now turned into open source GIS. ILWIS (Integrated Land and Water Information Management) is an oldie but a goodie.. The extinction-proof ILWIS is a free GIS software for planners,biologists, water
1000 GIS APPLICATIONS & USES One year in the making, these are some of your favorite GIS applications you haven’t heard of yet: GIS student project ideas, GIS case studies, GIS projects, GIS uses – From over 50 industries, this jam-packed guide of 1000 GIS applications will open your mind to our amazing planet and its interconnectivity. Table of Contents show. THE ULTIMATE LIST OF GIS FORMATS AND GEOSPATIAL FILE ECW is a compressed image format typically for aerial and satellite imagery. This GIS file type is known for its high compression ratios while still maintaining quality contrast in images. ECW format was developed by ER Mapper, but it’s now owned by Hexagon Geospatial. Joint Photographic Experts Group JPEG2000. LATITUDE, LONGITUDE AND COORDINATE SYSTEM GRIDS Map Coordinate Systems. You can give any location on Earth latitude and longitude coordinates. The field of study that measures the shape and size of the Earth is geodesy.Geodesists use coordinate reference systems such as WGS84, NAD27 and NAD83.In each coordinate system, geodists use mathematics to give each position on Earth a uniquecoordinate.
15 FREE SATELLITE IMAGERY DATA SOURCES 3. NASA Earthdata Search. There’s a lot to like about NASA’s Earthdata Search, specifically for Earth science data discovery.Especially, the choices of satellite imagery is incredible. DERIVED DATA: Most of NASA’s Earth Data is an analysis product for the study of Earth Science. For example, it’s anything from the biosphere, cryosphere, hydrosphere or atmosphere. VECTOR VS RASTER: WHAT'S THE DIFFERENCE BETWEEN GIS What GIS data types exist? Spatial data observations focus on locations.. Every house, every tree, every city has its own unique latitude and longitude coordinates.. The two primary types of spatial data are vector and raster data in GIS. But what is the difference between raster and vector data? GEODETIC DATUMS: NAD 27, NAD 83 AND WGS84 NAD 27 and NAD 83 provide a frame of reference for latitude and longitude locations on Earth. Surveyors now rely almost exclusively on the Global Positioning System (GPS) to identify locations on the Earth and incorporate them into existing geodetic datums. For example, NAD27, NAD83, and WGS84 are the most common geodetic datums in NorthAmerica.
TOP 6 FREE LIDAR DATA SOURCES 4. . NOAA Digital Coast. NOAA’s mission (in the sense of LiDAR data) is clear. Overall, they want to capture coastal area LiDAR data. Then, they serve this data openly to the public. NOAA’s Digital Coast web map gives you the ability to know exactly where coastal LiDAR is located in the United States. 27 DIFFERENCES BETWEEN ARCGIS AND QGIS It’s a head-to-head GIS software showdown with the star-studded lineup in the GIS industry- ArcGIS vs QGIS. Discover the differences between ArcGIS and QGIS MAGNETIC NORTH VS GEOGRAPHIC (TRUE) NORTH POLE The Geographic North Pole differs from the Magnetic North Pole by about 500 kilometers. The Geographic North Pole is where lines of longitudes converge into what we call the North Pole. The Magnetic Pole is a point in Northern Canada where the northern lines of attraction enter the Earth. A compass needle will point to thedirection of the
WHAT CAN YOU DO WITH A GIS DEGREE? The Alternative: GIS Diploma / Certification. If you want to earn a GIS degree, the American Association of Geographers (AAG) Guide to Geography Programs lists undergraduate and graduate geography programs in the United States, Canada, and Latin America. Furthermore, it includes degree requirements, curricula, faculty qualifications, and program specialties. 1000 GIS APPLICATIONS & USES 15 FREE SATELLITE IMAGERY DATA SOURCES 3. NASA Earthdata Search. There’s a lot to like about NASA’s Earthdata Search, specifically for Earth science data discovery.Especially, the choices of satellite imagery is incredible. DERIVED DATA: Most of NASA’s Earth Data is an analysis product for the study of Earth Science. For example, it’s anything from the biosphere, cryosphere, hydrosphere or atmosphere. GPS ACCURACY: HDOP, PDOP, GDOP, MULTIPATH & THE ATMOSPHERE GPS Accuracy: HDOP, PDOP, GDOP, Multipath & the Atmosphere. Have you ever wondered about your GPS accuracy?. A well-designed GPS receiver can achieve a horizontal accuracy of 3 meters or better.. For vertical accuracy, it can achieve an accuracy of 5 meters or better 95% of the time. Augmented GPS systems can provide sub-meter accuracy. 5 FREE HISTORICAL IMAGERY VIEWERS TO LEAP BACK IN THE PAST NASA Worldview. 5. Planet Labs. Aerial Orthoimagery for Historical Context. 1. . Google Earth Pro. Not only is Google a world leader in geocoded addressing, but you can leap to the past with its historical time slider. From satellite to aerial photography, WORLD GEODETIC SYSTEM (WGS84) The Global Positioning System uses the World Geodetic System (WGS84) as its reference coordinate system. It’s made up of a reference ellipsoid, a standard coordinate system, altitude data, and a geoid. Similar to the North American Datum of 1983 (NAD83), it uses the Earth’s center mass as the coordinate origin. 5 FREE GLOBAL DEM DATA SOURCES 3. . JAXA’s Global ALOS 3D World. ALOS World 3D is a 30-meter resolution digital surface model (DSM) captured by the Japan Aerospace Exploration Agency’s (JAXA). Recently, this DSM has been made available to the public. The neat thing about is that it is the most precise global-scale elevation data now. WHAT IS NDVI (NORMALIZED DIFFERENCE VEGETATION INDEX Normalized Difference Vegetation Index (NDVI) quantifies vegetation by measuring the difference between near-infrared (which vegetation strongly reflects) and red light (which vegetation absorbs). NDVI always ranges from -1 to +1. But there isn’t a distinct boundary for each type of land cover. For example, when you have negative values,it
US ROAD MAP: INTERSTATE HIGHWAYS IN THE UNITED STATES About the map. This US road map displays major interstate highways, limited-access highways and principal roads in the United States of America. It highlights all 50 states and capital cities, including the nation’s capital city of Washington, DC. Both Hawaii and Alaska are insets in this US road map. Interstate highways have a bright red DEM, DSM & DTM DIFFERENCES WHAT CAN YOU DO WITH A GIS DEGREE? The Alternative: GIS Diploma / Certification. If you want to earn a GIS degree, the American Association of Geographers (AAG) Guide to Geography Programs lists undergraduate and graduate geography programs in the United States, Canada, and Latin America. Furthermore, it includes degree requirements, curricula, faculty qualifications, and program specialties. 1000 GIS APPLICATIONS & USES 15 FREE SATELLITE IMAGERY DATA SOURCES 3. NASA Earthdata Search. There’s a lot to like about NASA’s Earthdata Search, specifically for Earth science data discovery.Especially, the choices of satellite imagery is incredible. DERIVED DATA: Most of NASA’s Earth Data is an analysis product for the study of Earth Science. For example, it’s anything from the biosphere, cryosphere, hydrosphere or atmosphere. GPS ACCURACY: HDOP, PDOP, GDOP, MULTIPATH & THE ATMOSPHERE GPS Accuracy: HDOP, PDOP, GDOP, Multipath & the Atmosphere. Have you ever wondered about your GPS accuracy?. A well-designed GPS receiver can achieve a horizontal accuracy of 3 meters or better.. For vertical accuracy, it can achieve an accuracy of 5 meters or better 95% of the time. Augmented GPS systems can provide sub-meter accuracy. 5 FREE HISTORICAL IMAGERY VIEWERS TO LEAP BACK IN THE PAST NASA Worldview. 5. Planet Labs. Aerial Orthoimagery for Historical Context. 1. . Google Earth Pro. Not only is Google a world leader in geocoded addressing, but you can leap to the past with its historical time slider. From satellite to aerial photography, WORLD GEODETIC SYSTEM (WGS84) The Global Positioning System uses the World Geodetic System (WGS84) as its reference coordinate system. It’s made up of a reference ellipsoid, a standard coordinate system, altitude data, and a geoid. Similar to the North American Datum of 1983 (NAD83), it uses the Earth’s center mass as the coordinate origin. 5 FREE GLOBAL DEM DATA SOURCES 3. . JAXA’s Global ALOS 3D World. ALOS World 3D is a 30-meter resolution digital surface model (DSM) captured by the Japan Aerospace Exploration Agency’s (JAXA). Recently, this DSM has been made available to the public. The neat thing about is that it is the most precise global-scale elevation data now. WHAT IS NDVI (NORMALIZED DIFFERENCE VEGETATION INDEX Normalized Difference Vegetation Index (NDVI) quantifies vegetation by measuring the difference between near-infrared (which vegetation strongly reflects) and red light (which vegetation absorbs). NDVI always ranges from -1 to +1. But there isn’t a distinct boundary for each type of land cover. For example, when you have negative values,it
US ROAD MAP: INTERSTATE HIGHWAYS IN THE UNITED STATES About the map. This US road map displays major interstate highways, limited-access highways and principal roads in the United States of America. It highlights all 50 states and capital cities, including the nation’s capital city of Washington, DC. Both Hawaii and Alaska are insets in this US road map. Interstate highways have a bright red DEM, DSM & DTM DIFFERENCES 1000 GIS APPLICATIONS & USES One year in the making, these are some of your favorite GIS applications you haven’t heard of yet: GIS student project ideas, GIS case studies, GIS projects, GIS uses – From over 50 industries, this jam-packed guide of 1000 GIS applications will open your mind to our amazing planet and its interconnectivity. Table of Contents show. THE ULTIMATE LIST OF GIS FORMATS AND GEOSPATIAL FILE ECW is a compressed image format typically for aerial and satellite imagery. This GIS file type is known for its high compression ratios while still maintaining quality contrast in images. ECW format was developed by ER Mapper, but it’s now owned by Hexagon Geospatial. Joint Photographic Experts Group JPEG2000. 13 FREE GIS SOFTWARE OPTIONS: MAP THE WORLD IN OPEN SOURCE 5. ILWIS. Free GIS software users rejoice. Once commercial GIS software, now turned into open source GIS. ILWIS (Integrated Land and Water Information Management) is an oldie but a goodie.. The extinction-proof ILWIS is a free GIS software for planners,biologists, water
LATITUDE, LONGITUDE AND COORDINATE SYSTEM GRIDS Map Coordinate Systems. You can give any location on Earth latitude and longitude coordinates. The field of study that measures the shape and size of the Earth is geodesy.Geodesists use coordinate reference systems such as WGS84, NAD27 and NAD83.In each coordinate system, geodists use mathematics to give each position on Earth a uniquecoordinate.
15 FREE SATELLITE IMAGERY DATA SOURCES 3. NASA Earthdata Search. There’s a lot to like about NASA’s Earthdata Search, specifically for Earth science data discovery.Especially, the choices of satellite imagery is incredible. DERIVED DATA: Most of NASA’s Earth Data is an analysis product for the study of Earth Science. For example, it’s anything from the biosphere, cryosphere, hydrosphere or atmosphere. 10 FREE GIS DATA SOURCES: BEST GLOBAL RASTER AND VECTOR Bonus 1: FAO GeoNetwork. We’re going above and beyond our 10 free data sources here so this is a bit of a bonus. This one is the FAO GeoNetwork which is another portal of free GIS data from the United Nations. The focus of GeoNetwork is to improve global sustainabledevelopment.
5 FREE GLOBAL DEM DATA SOURCES 3. . JAXA’s Global ALOS 3D World. ALOS World 3D is a 30-meter resolution digital surface model (DSM) captured by the Japan Aerospace Exploration Agency’s (JAXA). Recently, this DSM has been made available to the public. The neat thing about is that it is the most precise global-scale elevation data now. GEODETIC DATUMS: NAD 27, NAD 83 AND WGS84 NAD 27 and NAD 83 provide a frame of reference for latitude and longitude locations on Earth. Surveyors now rely almost exclusively on the Global Positioning System (GPS) to identify locations on the Earth and incorporate them into existing geodetic datums. For example, NAD27, NAD83, and WGS84 are the most common geodetic datums in NorthAmerica.
HOW UNIVERSAL TRANSVERSE MERCATOR (UTM) WORKS Universal Transverse Mercator (UTM) coordinate system is a standard set of map projections with a central meridian for each six-degree wide UTM zone. The transverse Mercator map projection is an adaptation of the standard Mercator projection which flips the cylinder 90 degrees (transverse). The UTM projection flattens the sphere 60 timesby
TOP 6 FREE LIDAR DATA SOURCES 4. . NOAA Digital Coast. NOAA’s mission (in the sense of LiDAR data) is clear. Overall, they want to capture coastal area LiDAR data. Then, they serve this data openly to the public. NOAA’s Digital Coast web map gives you the ability to know exactly where coastal LiDAR is located in the United States.MENU
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THE UNITED STATES MAP COLLECTION These are the defining maps of the United States. This United States map collection has everything from general reference, physical, climate and elections.US Map
US MAP COLLECTION: THE 50 STATES OF UNITED STATES OF AMERICA A US map collection with road maps, lakes, rivers, counties and major landmarks. Select from the 50 states of the United States. All US mapsare free to use.
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7 FREE ESRI TRAINING COURSES TO SINK YOUR TEETH INTO IN 2020 From scripting to real-time GIS (geofencing), our list of 7 free Esri training courses and MOOC will help you build a solid foundation foryour career in GIS.
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25 SATELLITE MAPS TO SEE EARTH IN NEW WAYS These are the top 25 satellite maps in 2020. The best part? You’ll get to explore Earth in new ways that you’ve never thought possible. Let’s get started.*
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