GHRC documentation comes in a variety of forms. Please contact us if you are looking for something not shown here.
![](https://ghrc.nsstc.nasa.gov/home/sites/all/themes/hydrology/images/content-capsules/cc_fc_plane.png)
A "guide document" contains detailed information about the dataset, such as what instruments were used to gather the data and what the processing algorithms were.
![](https://ghrc.nsstc.nasa.gov/home/sites/all/themes/hydrology/images/content-capsules/cc_writing.png)
The PI documents are reports written by the Principle Investigator (PI) of the project. They provide detailed information about the project and datasets.
![](https://ghrc.nsstc.nasa.gov/home/sites/all/themes/hydrology/images/content-capsules/cc_cdrom.png)