Forum

The GES DISC provides multiple services for subsetting and downloading MERRA-2 data on the Product Landing Page ( see an example for M2T1NXSLV ) for each data collection. Shown below are recommended methods: If the user is interested in subsetting variables over a region: Product landing page ---> S...

Demonstration of how to download MERRA-2 daily mean data over a region from a 3-hourly data collection, M2I3NPASM_5.12.4 (MERRA-2 inst3_3d_asm_Np). Example data: MERRA-2 3-d, 3-Hourly, Instantaneous, Pressure-Level, Assimilated Meteorological Fields (M2I3NPASM_5.12.4). The downloaded daily mean temp...

Hello - our staff will address your MERRA-2 file download problem, but due to staff absences during the July 4 holiday week, we will evaluate the difficulty you describe in the following work week (commencing July 8).

Hello, we have had recent staffing changes and vacations that prevented a timely response to your posting. Were you able to resolve the difficulty with the NLDAS file download? If you are still receiving an error message, please reply and we will address the situation causing the error. I believe yo...

Hello, we have had recent staffing changes and vacations that prevented a timely response to your posting. Were you able to resolve the difficulty with the MERRA-2 file download? If you are still receiving an error message, please reply and we will address the situation causing the error.

The MERRA-2 surface data, such as SPEED (Wind Speed) in M2T1NXFLX_5.12.4 and DUSMASS25 (PM2.5 dust surface mass concentration) in M2T1NXAER_5.12.4, are the surface (i.e. lowest) model layer data extracted from the 3-dimensional data and saved as a 2-dimensional variable. The surface model layer heig...

The NLDAS Phase 2 data have been reprocessed for the time range 2022-08-01 to 2024-03-01. Both the v2.0 (netCDF format) and v002 (GRIB-1 format) datasets were reprocessed. The data can be accessed from the NLDAS landing pages . Information about the reprocessed data can be found at NLDAS-2 data re-p...

Hello, NEO is an older website. The 0-255 numbers refer to the data scaling, which was 256-bit. This can be converted to the mg/m3 scale (there used to be a scale online) but there is an easier way. Use the Giovanni system, https://giovanni.gsfc.nasa.gov/ . Select MODIS-Aqua chlorophyll monthly data...

Hello, I forwarded your question to the OCO-2 data specialists at the GES DISC, who replied that the Lite_FP v11.2 data product has not yet been received from the data providers at JPL. The data providers are assessing changes to the data processing which produces this product to minimize potential ...

I asked our staff if the L3 OCO data products will be extended beyond their current end date. The L3 data product that is currently available was made with v10 data. There are currently no plans to make a Level 3 data product with the v11 data.