Search found 276 matches

by LAADS_UserServices_M
Thu Nov 30, 2023 10:43 am America/New_York
Forum: Questions/Comments
Question: How to select low level warm water cloud fraction in MODIS MCD06COSP dataset
Replies: 6

Re: How to select low level warm water cloud fraction in MODIS MCD06COSP dataset

In MODIS L3 COSP, the cloud fractions are aggregated at different pressure levels, there is no layer overlap: Cloud_Mask_Fraction: (all pressure levels: total column) Cloud_Mask_Fraction_Low: (CTP >= 680 hpa) Cloud_Mask_Fraction_Mid: (440 hpa <= CTP < 680 hpa) Cloud_Mask_Fraction_High: (CTP < 440 hp...
by LAADS_UserServices_M
Wed Nov 29, 2023 12:01 pm America/New_York
Forum: Questions/Comments
Question: LAADS request for GCMD Keywords
Replies: 6

Re: LAADS request for GCMD Keywords

Thanks very much Tyler.
Asad
by LAADS_UserServices_M
Wed Nov 29, 2023 10:40 am America/New_York
Forum: Questions/Comments
Question: LAADS request for GCMD Keywords
Replies: 6

Re: LAADS request for GCMD Keywords

Tyler, We reviewed the keywords and both looks fine. However, one of the eMAS project member provided following feedback (for Instrument Keyword: eMAS ): "..., the “eMAS” keyword link text is indeed from the eMAS home webpage, but includes only the first paragraph of text from the “Overview” se...
by LAADS_UserServices_M
Tue Nov 28, 2023 9:57 am America/New_York
Forum: Questions/Comments
Question: How to select low level warm water cloud fraction in MODIS MCD06COSP dataset
Replies: 6

Re: How to select low level warm water cloud fraction in MODIS MCD06COSP dataset

Yes, this is a correct way.
The logic is to find the pixels with valid cloud fraction values for both Cloud_Mask_Fraction_Low and Cloud_Retrieval_Fraction_Liquid, then for these pixels you can use either Cloud_Retrieval_Fraction_Liquid or Cloud_Mask_Fraction_Low.
by LAADS_UserServices_M
Tue Nov 28, 2023 7:08 am America/New_York
Forum: Questions/Comments
Question: LAADS request for GCMD Keywords
Replies: 6

Re: LAADS request for GCMD Keywords

Tyler,
Thanks very much for the quick action. I review these and will get back to you asap.
Asad
by LAADS_UserServices_M
Mon Nov 27, 2023 2:48 pm America/New_York
Forum: Questions/Comments
Question: How to select low level warm water cloud fraction in MODIS MCD06COSP dataset
Replies: 6

Re: How to select low level warm water cloud fraction in MODIS MCD06COSP dataset

Below is a response from our SME: Cloud Mask Fraction Low: it is based on cloud top pressure (CTP >= 680hpa) for daytime (SZA <= 85 deg). The daytime cutoff is less strict than cloud optical properties (SZA <= 81.3731 deg), so the data extends a bit farther poleward. It may include liquid, ice, or u...
by LAADS_UserServices_M
Mon Nov 27, 2023 8:00 am America/New_York
Forum: Questions/Comments
Question: VJ109_NRT is not georeferncing
Replies: 1

Re: VJ109_NRT is not georeferncing

Try using "Reprojection Tool" provided under Land Data Operational Product Evaluation (LDOPE) Tools on LAADS website at:
https://ladsweb.modaps.eosdis.nasa.gov/tools-and-services/#ldope
Here, the user guide provide information on how to install and use these tools.
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.