Search found 391 matches

by LP DAAC - jwilson
Fri Jan 09, 2026 12:43 pm America/New_York
Forum: Home
Question: EMIT L2A Masks Version 2 Data Product Released
Replies: 0

EMIT L2A Masks Version 2 Data Product Released

The Land Processes Distributed Active Archive Center ( LP DAAC ) released NASA’s Earth Surface Mineral Dust Source Investigation ( EMIT ) Level 2A Masks Version 2 data product. The Version 2 Masks data product provides a series of masks to help identify clear and reliable observations of Earth’s sur...
by LP DAAC - jwilson
Wed Jan 07, 2026 6:39 pm America/New_York
Forum: Home
Question: Metadata in ASTER v004 (TIR + VNIR/SWIR) granules
Replies: 7

Re: Metadata in ASTER v004 (TIR + VNIR/SWIR) granules

alberto_silva_2024 Please find the ASTER scientist further guidance to your questions. Thank you for providing the granule ID. To further address your questions: The ASTER 05 Emissivity Product is distributed as an unscaled uint16 product. To calculate the emissivity per pixel (range 0–1), you need...
by LP DAAC - jwilson
Tue Jan 06, 2026 3:59 pm America/New_York
Forum: Home
Question: Metadata in ASTER v004 (TIR + VNIR/SWIR) granules
Replies: 7

Re: Metadata in ASTER v004 (TIR + VNIR/SWIR) granules

@alberto_silva_2024 To better assist you can you provide the granule ID.
by LP DAAC - jwilson
Mon Jan 05, 2026 4:09 pm America/New_York
Forum: Home
Question: Metadata in ASTER v004 (TIR + VNIR/SWIR) granules
Replies: 7

Re: Metadata in ASTER v004 (TIR + VNIR/SWIR) granules

@alberto_silva_2024 We have forwarded your questions to the science team to provide some additional assistance with your inquiry. I will follow up with you once I hear back from the science team.
Thank you for your patience.
Janice
by LP DAAC - jwilson
Fri Jan 02, 2026 2:39 pm America/New_York
Forum: Home
Question: Metadata in ASTER v004 (TIR + VNIR/SWIR) granules
Replies: 7

Re: Metadata in ASTER v004 (TIR + VNIR/SWIR) granules

@alberto_silva_2024 Please find the guidance our scientists provided.
Level-2 products are already in physical units. All you need to do is take the pixel value and multiply it by the scale factor to get the physical measurement.
Let me know if this helps.
LP DAAC User Services
by LP DAAC - jwilson
Fri Jan 02, 2026 1:18 pm America/New_York
Forum: Home
Question: Metadata in ASTER v004 (TIR + VNIR/SWIR) granules
Replies: 7

Re: Metadata in ASTER v004 (TIR + VNIR/SWIR) granules

alberto_silva_2024 Thank you for your question. ASTER Version 3 data were decommissioned on Dec 15, 2025, and they are no longer available. ASTER V004 which is archived in CMR does not provide it as a separate file. So rather than being processed on demand the data will be archived in the cloud. AS...
by LP DAAC - jwilson
Wed Dec 31, 2025 2:59 pm America/New_York
Forum: Home
Question: VIIRS Evapotranspiration Products Available In AppEEARS
Replies: 0

VIIRS Evapotranspiration Products Available In AppEEARS

Version 3.104 of the Application for Extracting and Exploring Analysis Ready Samples ( AppEEARS ) has been released. This release adds the Visible Infrared Imaging Radiometer Suite ( VIIRS ) Actual and Potential Evapotranspiration (ET) Version 2 data products from the Suomi National Polar-orbiting ...
by LP DAAC - jwilson
Wed Dec 31, 2025 2:44 pm America/New_York
Forum: Home
Question: ASTER Version 4 Historical Processing Completed
Replies: 0

ASTER Version 4 Historical Processing Completed

NASA’s Land Processes Distributed Active Archive Center ( LP DAAC ) has completed processing the historical archive of the Advanced Spaceborne Thermal Emission and Reflection Radiometer ( ASTER ) data into Version 4 products. All 4.7+ million ASTER observations from 2000 to 2025 are now available fo...
by LP DAAC - jwilson
Tue Dec 30, 2025 10:42 am America/New_York
Forum: Home
Question: ASTER Version 3 and 3.1 Data Products Decommissioned
Replies: 2

Re: ASTER Version 3 and 3.1 Data Products Decommissioned

nufaisa Unfortunately, ASTER Version 3 and 3.1 are no longer available. ASTER V004 which is archived in CMR does not provide it as a separate file. So rather than being processed on demand the data will be archived in the cloud. ASTER V4 Product User Guide: https://lpdaac.usgs.gov/documents/2265/AS...
by LP DAAC - jwilson
Tue Dec 30, 2025 10:01 am America/New_York
Forum: Home
Question: ASTER STEREOPAIRS
Replies: 1

Re: ASTER STEREOPAIRS

nufaisa Thank you for your question. The ASTER L1 V003 data is no longer available as of December 15, 2025. Our science support suggests that using a free tool such as the GDAL to convert to a single GeoTiff file may assist you with HDF to GeoTiff. How to use gdal to convert HDF multi-band file to ...