Knowledge Base

SMAP
FAQ
Do you have code for reading SMAP data into MATLAB, Python, IDL, or NCL?

The ... Read more

Why do the soil moisture values in the SMAP Level-4 data vary from what I expect in a particular region?

There are a few reasons that the soil moisture data values in SMAP ... Read more

What are the latencies for SMAP radiometer data sets?

The following table describes both the required ... Read more

Why does the root zone soil moisture in the SMAP Level-4 soil moisture products vary in such close unison with the surface soil moisture?

The surface and root zone soil moisture estimates in the SMAP Level-4 ... Read more

Why don't the SMAP enhanced soil moisture products include landcover class?

While the standard SMAP Level-2 and -3 radiometer soil moisture ... Read more

What data subsetting, reformatting, and reprojection services are available for SMAP data?

The following table describes the data subsetting, reformatting, and ... Read more

How are the enhanced SMAP radiometer products generated and what are the benefits of using these products?

There is considerable overlap of the SMAP radiometer footprints, or ... Read more

How To
How do I search, order, and customize SMAP data using Earthdata Search?

The attached video tutorial (.mp4) and document (.pdf) provide step-by- ... Read more

How do I visualize SMAP data in Worldview?

The attached video tutorial provides step-by-step instructions on how ... Read more

How to read SMAP data into MATLAB, Python, IDL, or NCL

The ... Read more

How to import and geolocate SMAP Level-3 and Level-4 data in ENVI

The following are instructions on how to import and geolocate SMAP ... Read more

How to import and geolocate SMAP Level-1C and Level-2 data in ENVI

The following are instructions on how to import and geolocate SMAP ... Read more

How do I identify files adversely affected by the SMAP Level-1B atmospheric correction error?

Due to a problem involving the atmospheric correction algorithm used to ... Read more

How do I interpret the surface and quality flag information in the Level-2 and -3 passive soil moisture products?

SMAP data files contain rich quality information that can be useful for ... Read more