Finding basic NDVI/NDRE high res data from Planet

[andrewschuh]

Hey all, I'm wondering if somebody can help me. Since CSDA started acquiring data several years ago, I've struggled to use the interfaces to find, what should be, pretty basic data. High resolution NDVI/NDRE for example over a smallish area of Colorado. There *should* be plenty of data in the 1-10m resolution range from "some" instruments. I'm trying to use csdap.earthdata.nasa.gov but finding it incredibly difficult to find relevant data for summer time periods of years like 2022 or 2025. I *should* be able to find stuff like multiband to use to create VI indices I'd imagine. However, I find the user interace really counterintuitive. Any suggestions out there?

[Earthdata - jbrennan424]

HI Andrew- Thank you for your question regarding access to Planet data available through NASA's CSDA program and for your feedback regarding the Satellite Data Explorer Tool's usability. Are you currently an authorized user for Planet data available through the CSDA program? If not, your first step is to visit: https://csdap.earthdata.nasa.gov/signup/ to request authorization. If you are already a CSDA user, you might find the CSDA Satellite Data Explorer Data Exploration section of the User Guide useful at: https://csdap.earthdata.nasa.gov/user-guide/#data-exploration.

For historical multispectral CSDA program data you might consider Planetscope data, however we encourage you to view the CSDA initial radiometric evaluation report results, especially for the NIR band at: https://www.earthdata.nasa.gov/s3fs-public/2025-03/CSDA_Planet_Radiometric_Assessment%20February%202025.pdf. Another option might be to task WorldView-2, WorldView-3 or Legion data available through our CSDA program data provider Vantor (formerly Maxar). You can task data for future studies by using the Data Access Request System (DARS) in the SDX. To access the DARS, click on the small satellite icon within the left panel of the SDX. You can reach the CSDA program data team for questions and support at: csda-support@nasa.gov

**About available CSDA vendor data- Not all vendor data acquired through the CSDA program is stored in the Satellite Data Explorer. The only data in SDX are the data that the CSDA program has fulfilled in a previous order and ingested. To request access to archive data that is not in the SDX a user needs to request data with a specified location and date range to the CSDA team. The CSDA team would then look through the vendor’s portal to find any data that matches the location and timeframe. Alternatively, the end-user can go to the vendor’s portal, find the id of the data they are interested in, and then send that data ID to CSDA in their request.**

Some quick tips for data access using the Satellite Data Explorer:

• Click on the blue "explore the data" widget once on the Satellite Data Explorer page
  In the right panel, click on "filter", then under "product type" select "imagery"
  Filter by vendor- select your vendor
  Select your data and area-of-interest in the AOI panel (draw AOI on map, enter coordinates, or upload GeoJSON file.