What is Topography? The Definitive Guide
Topography lays the underlying foundation of the Earth’s surface. In this comprehensive guide, you’ll learn everything about topography and topographic maps.
Author: GISGeography
We help you learn Geographic Information Systems and remote sensing
Why Are Great Circles the Shortest Flight Path?
Airplanes travel along the true shortest route in a 3-dimensional space. This curved route is called a geodesic or great circle route.
What is Metadata? (Hint: It’s All About the Data)
Metadata is like an instruction manual for data. It describes who, what, when, where and why for data. At the same time, it has to be detailed & dependable.
How To Use Esri Collector and Survey123 as Field Work Apps
Esri Collector and Survey123 are the one-two punch for data collection in the field. Collector is the central app which calls Survey123 forms for data entry
How Spatial Join Works in GIS
The spatial join tool inserts the columns from one feature table to another based on location or proximity. It can affix one or many fields to the target.
What is Geostatistics?
Geostatistics is the study of statistics with a focus on finding patterns of geographic phenomena using variograms, kriging and validation.
Sentinel 2 Bands and Combinations
Sentinel 2 has a total of 13 bands. Each band is 10, 20 or 60 meters in pixel size. This includes red, green, blue, near infrared and short infrared bands.
Where is the Central Meridian?
The central meridian is the center line of longitude for projection systems. Projected coordinate systems often use it as a reference point for a x-origin.
How to Track the Spread of Viruses Using GIS
Everyday, communities are at risk of transmissible diseases and growing pandemics like COVID-19. We use GIS to track the spread of viruses in real-time maps.
Mango Map Review – Simplicity is Sophistication
Mango Map is ideal for casual users who don’t want a fancy map. This web mapping platform is easy to get a hang of at a reasonable price.