Search found 269 matches

by LAADS_UserServices_M
Thu Jul 06, 2023 7:25 am America/New_York
Forum: Questions/Comments
Question: Missing MODIS v6.1 data on Jun 29 - Jun 30 2023
Replies: 3

Re: Missing MODIS v6.1 data on Jun 29 - Jun 30 2023

There were missing L0 data for Terra on day 180 and for Aqua on day 184, so that hold up processing for the respective instruments, starting from respective days.
by LAADS_UserServices_M
Wed Jul 05, 2023 11:11 am America/New_York
Forum: Questions/Comments
Question: Bulk Download Problem
Replies: 6

Re: Bulk Download Problem

From where are you trying to download data, ladsweb, nrt, or Earthdata Cloud? Can you provide some example URLs to investigate?
by LAADS_UserServices_M
Wed Jul 05, 2023 10:53 am America/New_York
Forum: Questions/Comments
Question: 504 Gateway Time-out
Replies: 1

Re: 504 Gateway Time-out

All servers are working normally at the moment. It could be a temporary issue which does not exist anymore.
by LAADS_UserServices_M
Wed Jun 21, 2023 11:28 am America/New_York
Forum: Questions/Comments
Question: Delay in publication to s3://prod-lads
Replies: 4

Re: Delay in publication to s3://prod-lads

Yes, you should access files from the bucket if available on ladsweb.
by LAADS_UserServices_M
Wed Jun 14, 2023 12:55 pm America/New_York
Forum: Questions/Comments
Question: Missing Aerosol Optical Depth (AOD) Data in MYD04_L2
Replies: 9

Re: Missing Aerosol Optical Depth (AOD) Data in MYD04_L2

No, there are no python code examples available at LAADS. However, you may want to check with "HDF-EOS TOOLS AND INFORMATION CENTER", they have Python code example to work with MODIS data. Their website is
https://www.hdfeos.org/
by LAADS_UserServices_M
Mon Jun 12, 2023 11:43 am America/New_York
Forum: Questions/Comments
Question: Request for Flood inundation data
Replies: 2

Re: Request for Flood inundation data

You can explore LAADS API interface to automate NRT data download. You can find information including quick start guide and API specification at: https://ladsweb.modaps.eosdis.nasa.gov/tools-and-services/#api-v2 A sample call would look like: https://nrt3.modaps.eosdis.nasa.gov/api/v2/content/archiv...
by LAADS_UserServices_M
Wed Jun 07, 2023 11:14 am America/New_York
Forum: Questions/Comments
Question: Python download script utf-8 UnicodeDecodeError VNP46A1
Replies: 1

Re: Python download script utf-8 UnicodeDecodeError VNP46A1

The issue is that HDF5 is a binary format, not a text format. There is no text encoding that will work to decode it as text (as you are seeing). The script does also read csv or json files from the web site, to get the directory listings, so it needs to be able to read both text and binary data. Unf...
by LAADS_UserServices_M
Wed Jun 07, 2023 10:50 am America/New_York
Forum: Questions/Comments
Question: Read the reflectance of MODIS L1B data
Replies: 3

Re: Read the reflectance of MODIS L1B data

The MOD03 file has the lat/lon and view geometry at the same resolution as the L1B file. If these fields from an L1B file are to be used an interpolation to account for the different dimensions needs to be performed.
by LAADS_UserServices_M
Mon Jun 05, 2023 9:23 am America/New_York
Forum: Questions/Comments
Question: Read the reflectance of MODIS L1B data
Replies: 3

Re: Read the reflectance of MODIS L1B data

The MOD021KM files contain radiances and reflectances, What's stored in the files are HDF Scientific Data Sets (SDSs), each of which has a "long_name" attribute that ends with "Scaled Integers". The values store in those SDSs are scaled integers, (abbreviated SI). You need to use...