The two primary GIS certification types are the GISP and Esri Technical certification. But is it worth the time, effort and money to get a GIS certificate?
A horizontal datum provides a reference frame for latitude and longitude coordinates on the Earth. A datum is constructed through surveys and triangulation.
Some of the best GIS weather data available can be found at NWS, PRISM, MADIS and Weather Source. This GIS weather data dates back from past to present.
This list is a collaborative effort of the most valuable Esri ArcMap tips and tricks. Follow these golden rules and you will save time and improve workflow.
