Search found 269 matches

by LAADS_UserServices_M
Mon Nov 20, 2023 9:48 am America/New_York
Forum: Questions/Comments
Question: LAADS request for GCMD Keywords
Replies: 6

LAADS request for GCMD Keywords

Hello, The LAADS DAAC would like to request following keywords: 1. GCMD Instrument Keyword: Short Name: eMAS Long Name: Enhanced MODIS Airborne Simulator Documentation: https://asapdata.arc.nasa.gov/emas/index.html 2. GCMD Project Keyword: Short Name: MAS_eMAS Long Name: MODIS Airborne Simulator (MA...
by LAADS_UserServices_M
Thu Nov 09, 2023 7:36 am America/New_York
Forum: Questions/Comments
Question: AERDB_L2_VIIRS_NOAA20 collection is incomplete on CMR
Replies: 4

Re: AERDB_L2_VIIRS_NOAA20 collection is incomplete on CMR

Please try again all should be available now. { "ShortName": "AERDB_L2_VIIRS_NOAA20", "Version": "2" } { "RangeDateTime": { "BeginningDateTime": "2018-02-17T00:30:00.000Z", "EndingDateTime": "2018-02-17T00:36:00.000...
by LAADS_UserServices_M
Wed Nov 08, 2023 10:14 am America/New_York
Forum: Questions/Comments
Question: AERDB_L2_VIIRS_NOAA20 collection is incomplete on CMR
Replies: 4

Re: AERDB_L2_VIIRS_NOAA20 collection is incomplete on CMR

Looking into it and will get back to you soon.
by LAADS_UserServices_M
Wed Nov 08, 2023 7:44 am America/New_York
Forum: Questions/Comments
Question: The MODIS data was unable to generate orders.
Replies: 1

Re: The MODIS data was unable to generate orders.

We just tried a query like you were trying and could not reproduced your error. We could order data without any issue (see attached). You may want to retry after clearing your browser's history or can try in another browser.
screenshot.png
screenshot.png (49.47 KiB) Not viewed yet
by LAADS_UserServices_M
Tue Oct 31, 2023 3:26 pm America/New_York
Forum: Questions/Comments
Question: Cloud Effective Radius in MYD06_L2
Replies: 2

Re: Cloud Effective Radius in MYD06_L2

The SDS "Cloud_Effective_Radius_1621" is "Cloud Particle Effective Radius two-channel retrieval using band 7(2.1um) and band 6(1.6um)from best points". For more information see: https://atmosphere-imager.gsfc.nasa.gov/products/cloud/format-content and https://atmosphere-imager.gs...
by LAADS_UserServices_M
Mon Oct 23, 2023 3:34 pm America/New_York
Forum: Questions/Comments
Question: Is there a plan to migrate MODIS L1A products to clouds?
Replies: 1

Re: Is there a plan to migrate MODIS L1A products to clouds?

We are glad that you find our data archive on the Cloud useful. No, currently there is no plan to migrate MODIS L1A data to the Cloud.
by LAADS_UserServices_M
Wed Oct 11, 2023 7:16 am America/New_York
Forum: Questions/Comments
Question: AERDB_L2_VIIRS_NOAA20 collection is incomplete on CMR
Replies: 4

Re: AERDB_L2_VIIRS_NOAA20 collection is incomplete on CMR

Dear Adam Thurston:
We are working on it and the whole collection should be available in CMR within a week.
by LAADS_UserServices_M
Tue Oct 03, 2023 7:36 am America/New_York
Forum: Questions/Comments
Question: Scaling of Cloud Top Temperature product of MODIS Aqua level 2
Replies: 2

Re: Scaling of Cloud Top Temperature product of MODIS Aqua level 2

The values you listed are correct. The "add_offset" value is a negative value: units = K scale_factor = 0.009999999776482582 add_offset = -15000.0 The following equation should be used to get to the real value: value = scale_factor * ( stored_value - add_offset ) so for a stored integer va...
by LAADS_UserServices_M
Thu Sep 28, 2023 10:24 am America/New_York
Forum: Questions/Comments
Question: Georeference Suomi-NPP NRT HDF to GeoTIFF
Replies: 1

Re: Georeference Suomi-NPP NRT HDF to GeoTIFF

Somehow missed your post. You may want to explore tools available from LAADS DAAC. The information about these tools can be found here: https://ladsweb.modaps.eosdis.nasa.gov/tools-and-services/#ldope The User Guide for the Reproject tool has an example of first reprojection of the MODIS/VIIRS data ...
by LAADS_UserServices_M
Mon Sep 11, 2023 12:42 pm America/New_York
Forum: Questions/Comments
Question: NASA's Black Marble monthly data: Reprojection isn't accurate
Replies: 1

Re: NASA's Black Marble monthly data: Reprojection isn't accurate

Hi Nikolaos, Yes, it appears that the issue lies in how you're calculating the spatial extent. This is how you calculate the bounding box using the horizontal (h) and vertical(v) time number – WestBoundCoord = (10*HorizontalTileNumber) - 180 NorthBoundCoord = 90-(10*VerticalTileNumber) EastBoundCoor...