Search found 22 matches

by GES DISC - cbattisto
Tue Mar 04, 2025 5:21 pm America/New_York
Forum: Home
Question: Downloading specific time data from MERRA-2
Replies: 8

Re: Downloading specific time data from MERRA-2

Hello,

For your time parameters, please use the following:

begTime = '1997-08-02T23:30:00Z'
endTime = '1997-08-02T23:30:00Z'
begHour = '23:30'
endHour = '23:30'

Originally, the endTime was shorter than the endHour, causing the error.

Chris
by GES DISC - cbattisto
Tue Mar 04, 2025 1:23 pm America/New_York
Forum: Home
Question: Downloading specific time data from MERRA-2
Replies: 8

Re: Downloading specific time data from MERRA-2

Hello,

We are looking into this error. I am also receiving the same 404 error when doing the previous subset example. Fortunately, it does work when using the subsetter tool on the website, if you wish to use that method for now.

Chris
by GES DISC - cbattisto
Tue Feb 25, 2025 2:12 pm America/New_York
Forum: Home
Question: Downloading specific time data from MERRA-2
Replies: 8

Re: Downloading specific time data from MERRA-2

Great, I'm glad to hear! Yes, you will need to convert to UTC by adding 7, in your use case. You can also use the Python "pytz" and "datetime" libraries, which will automatically perform this conversion. Here's an example, for getting the UTC hour of 12:30PM local time on 1996-01...
by GES DISC - cbattisto
Mon Feb 24, 2025 5:15 pm America/New_York
Forum: Home
Question: Downloading specific time data from MERRA-2
Replies: 8

Re: Downloading specific time data from MERRA-2

Hello, In order to subset on an hourly basis, there are a few parameters that need to be included in the subset request, as well as insuring that certain parameters like start and end times are formatted correctly. In addition to the 'start' and 'end' parameters, the 'diurnalFrom' and 'diurnalTo' pa...
by GES DISC - cbattisto
Fri Jan 03, 2025 12:42 pm America/New_York
Forum: Home
Question: Inquiry About Automated Data Download Using Giovanni Software
Replies: 7

Re: Inquiry About Automated Data Download Using Giovanni Software

Hello, Your approach is feasible, and since you would be accessing the data from cloud servers (the default source for earthaccess), the risk of overloading our services is minimal. However, we do impose rate limiting on unusually high requests, so we do recommend splitting large requests into sever...
by GES DISC - cbattisto
Wed Dec 18, 2024 12:08 pm America/New_York
Forum: Home
Question: Inquiry About Automated Data Download Using Giovanni Software
Replies: 7

Re: Inquiry About Automated Data Download Using Giovanni Software

Hello, I'm Chris Battisto from the GES DISC User Needs team-may I offer a few suggestions regarding your code approach: First, your data download section is fine, but can be shortened and made more efficient through the use of the "earthaccess" Python library. This adaptation of your exist...
by GES DISC - cbattisto
Tue Oct 29, 2024 2:58 pm America/New_York
Forum: Home
Question: Issue with EDL token usage
Replies: 2

Re: Issue with EDL token usage

Hello, Thank you for reporting this error. The Pydap library will use the token method first, and if that fails, it will fall back to using the netrc/dodsrc if they exist. In this case, you actually uncovered an bug in our code, where the "Bearer: " string is missing from the request heade...
by GES DISC - cbattisto
Fri Jul 19, 2024 12:06 pm America/New_York
Forum: Home
Question: Trouble with Authentication Error when Accessing MERRA-2 Data via OPenDAP URL
Replies: 3

Re: Trouble with Authentication Error when Accessing MERRA-2 Data via OPenDAP URL

Hello,

Just following up on this error. Were you able to resolve it?

Chris Battisto
by GES DISC - cbattisto
Tue Apr 23, 2024 2:18 pm America/New_York
Forum: Home
Question: Trouble with Authentication Error when Accessing MERRA-2 Data via OPenDAP URL
Replies: 3

Re: Trouble with Authentication Error when Accessing MERRA-2 Data via OPenDAP URL

Hello, Have you verified that your "Earthdata prerequisite files" have been generated and stored? These include the .netrc, .dodsrc, and .urs_cookies files: https://disc.gsfc.nasa.gov/information/howto?keywords=prerequisite&title=How%20to%20Generate%20Earthdata%20Prerequisite%20Files T...
by GES DISC - cbattisto
Wed Apr 03, 2024 10:52 am America/New_York
Forum: Home
Question: Issues with MERRA2 data download [Error 500]
Replies: 4

Re: Issues with MERRA2 data download [Error 500]

Hello,

This issue is fixed, and your error should be resolved.

Please let us know if you encounter any more errors,
Chris Battisto