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After reviewing your URL, it seems the issue may be related to the value you entered for "Horizontal Stride." This parameter controls the interval at which latitude and longitude points are sampled—essentially acting like the increment in a loop. For example, a stride of 1 means every grid...

Before retrying, make sure to clear your browser cache or try using a different web browser. To assist you more effectively, please provide the exact error message you received, along with the "NCSS Request URL" that triggered the issue. This URL is displayed just above the "Submit&qu...

Dear user, Please try again by narrowing the time range for each attempt — for example, subset one month per attempt. A large volume of data request may result in the error of "Internal Service Error". https://goldsmr4.gesdisc.eosdis.nasa.gov/thredds/ncss/grid/MERRA2_aggregation/M2T1NXAER....

Hi dear user, Thank you for sending the screenshot — we're glad to assist you. Please try submitting your request using a shorter time range, such as one month at a time. The dataset you’re accessing (M2I1NXASM, 198 MB per day) is quite large, and requesting data for a full five-year period at once ...

Dear user, The filename prefix was changed if a data file was reprocessed. Click this link to view the records of MERRA-2 reprocessed data and how the filename is changed (https://disc.gsfc.nasa.gov/information/documents?title=Records%20of%20MERRA-2%20Data%20Reprocessing%20and%20Service%20Changes). ...

Hi Taeho, Thanks for your reply. Yes, NCCS account is restricted for foreign nationals. Do you mind to send an email to the GES DISC Help Desk at gsfc-dl-help-disc@mail.nasa.gov, mentioning the subject and this forum link https://forum.earthdata.nasa.gov/viewtopic.php?p=22999#p22999? Thanks, NASA GE...

Hi Taeho We’re glad to assist you and understand that the download volume is quite large. We're actively working on identifying the best solution to support your needs. M2I3NVAER is in 72-model levels and MERRA-2 doesn't have a similar collection in pressure levels. Do you have an account at the NAS...

I am glad to know it works! For additional information on MERRA-2 data, please read MERRA-2 File Specification Document first (https://gmao.gsfc.nasa.gov/pubs/docs/Bosilovich785.pdf), and refer to the MERRA-2 project page for more tutorials: https://disc.gsfc.nasa.gov/information/mission-project?tit...

Sorry to hear this issue. Please try the tip below: When using wget on a Windows computer, you may get the error "Unable to establish SSL connection". This will cause the file download to randomly fail for some data files ("granules"). If this happens, re-run the wget command wit...

To clarify, I meant the northward direction is positive, i.e., positive value when the wind blows from south to north.