Search found 264 matches

by LAADS_UserServices_M
Fri Jul 29, 2022 3:41 pm America/New_York
Forum: Questions/Comments
Question: query new files in directory
Replies: 6

Re: query new files in directory

Dear Peter: One option is that you use: https://nrt3.modaps.eosdis.nasa.gov/archive/allData/5200/VNP14IMG_NRT/2022/[latest DOY] instead and monitor this folder for new files. DOY folders are updated at the same time as "Recent" folder. Otherwise, you can use something like: https://nrt3.mo...
by LAADS_UserServices_M
Thu Jul 28, 2022 8:45 am America/New_York
Forum: Questions/Comments
Question: MODIS MOD06 cloud top height = 0?
Replies: 6

Re: MODIS MOD06 cloud top height = 0?

Dear Jasper: The Cloud_Top_Heights in the MOD06/MYD06 products are derived from mapping Cloud_Top_Pressure retrievals to heights using the GFS reanalysis Geopotential Heights. Even though there are Cloud_Top_Pressure data values in the data files it does not mean that all of the data are of good qua...
by LAADS_UserServices_M
Wed Jul 27, 2022 11:25 am America/New_York
Forum: Questions/Comments
Question: S-NPP spacecraft in safe mode
Replies: 0

S-NPP spacecraft in safe mode

Updated 2022-08-11:16:30 UTC -- The S-NPP High Rate Data downlink was activated on August 11, 2022, at 14:35 UTC. LandSIPS and LANCE have started receiving SNPP VIIRS science data since around 15:48 UTC yesterday, August 10, but all product distribution will remain suspended till instrument status a...
by LAADS_UserServices_M
Mon Jul 25, 2022 1:05 pm America/New_York
Forum: Questions/Comments
Question: Error 500 and 504 downloading VIIRS (VNP46A1)
Replies: 6

Re: Error 500 and 504 downloading VIIRS (VNP46A1)

Send the reference number you get or your query/call for us to investigate.
by LAADS_UserServices_M
Mon Jul 25, 2022 9:32 am America/New_York
Forum: Questions/Comments
Question: MODIS MOD06 cloud top height = 0?
Replies: 6

Re: MODIS MOD06 cloud top height = 0?

Dear Jasper:
Our Cloud SME just sent this:
"We have been carefully looking at this but haven’t yet reached a point where we have a clear answer for the user. Within the next few days we should be able to answer."
by LAADS_UserServices_M
Mon Jul 25, 2022 9:07 am America/New_York
Forum: Questions/Comments
Question: Error 500 and 504 downloading VIIRS (VNP46A1)
Replies: 6

Re: Error 500 and 504 downloading VIIRS (VNP46A1)

Dear Mary: All LAADS servers are working normally at the moment. Please try again and let us know if you still cannot access data. Direct access to LAADS archive: https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/5000/VNP46A1/2019/ LAADS search and order: https://ladsweb.modaps.eosdis.nasa.gov/...
by LAADS_UserServices_M
Fri Jul 22, 2022 6:47 am America/New_York
Forum: Questions/Comments
Question: MODIS MOD06 cloud top height = 0?
Replies: 6

Re: MODIS MOD06 cloud top height = 0?

Just to let you know we sent your question to our MODIS Cloud product expert and waiting for the response. We will let you know as soon as we here back. We appreciate your patience.
by LAADS_UserServices_M
Wed Jul 20, 2022 8:18 am America/New_York
Forum: Questions/Comments
Question: Access to near real-time satellite data provided by MODIS
Replies: 1

Re: Access to near real-time satellite data provided by MODIS

You may want to explore NASA’s Fire Information for Resource Management System (FIRMS) at:
https://www.earthdata.nasa.gov/learn/find-data/near-real-time/firms
by LAADS_UserServices_M
Mon Jul 18, 2022 1:30 pm America/New_York
Forum: Questions/Comments
Question: MODIS MOD06 cloud top height = 0?
Replies: 6

Re: MODIS MOD06 cloud top height = 0?

Dear Jasper: In order to get actual values you need to apply the scale_factor and the add_offset for the parameter/SDS you are intersted in (e.g., cloud_top_height). The scale_factor and offset values are provided in the header metadata for each SDS/layer or in the product user guide. The following ...
by LAADS_UserServices_M
Mon Jul 18, 2022 8:41 am America/New_York
Forum: Questions/Comments
Question: How to subset MODIS L1B data?
Replies: 1

Re: How to subset MODIS L1B data?

Dear Zhibo Zhang: In order to perform subsetting (both spatial and parameter subsetting) you can use LAADS post processing utility. This is available during the last step (5 REVIEW & ORDER) of search and order process. So, once you select the file(s) go to '5 REVIEW & ORDER' and click on App...