Search found 119 matches
- Fri Nov 03, 2023 12:08 pm America/New_York
- Forum: Questions/Comments
- Question: How to calculate NDVI from MODIS MOD09GQ?
- Replies: 4
Re: How to calculate NDVI from MODIS MOD09GQ?
Hello, First, please see Table 8 in the MOD09 User Guide, this is the bit index: https://lpdaac.usgs.gov/documents/925/MOD09_User_Guide_V61.pdf Bit 0-1 are the Modland QA bits and are probably the most important for your purpose. Pixels with a value of 00 in the 0-1 bits are considered very good qua...
- Fri Nov 03, 2023 9:49 am America/New_York
- Forum: Questions/Comments
- Question: georeference of ECO2LSTE v001
- Replies: 4
Re: georeference of ECO2LSTE v001
Hi, It is not unusual to have more QA files then data files. Because the AppEEARS uses the Geolocation files in itzs search, so it will bring back the QAs for any file that intersects with your AOI. However, not every file will have all the different data products produced from it, but it will have ...
- Thu Nov 02, 2023 7:05 am America/New_York
- Forum: Questions/Comments
- Question: georeference of ECO2LSTE v001
- Replies: 4
Re: georeference of ECO2LSTE v001
Hello, It can be somewhat problematic to work with without it being georectified. Could you take a look at our AppEEARS tool: https://appeears.earthdatacloud.nasa.gov AppEEARS makes data like Ecostress so uch easier to work with. You can subset, project and reformat just to name a few and you do not...
- Tue Oct 31, 2023 11:24 am America/New_York
- Forum: Questions/Comments
- Question: Missing VJ109H1 scenes in Earthdata cloud
- Replies: 12
Re: Missing VJ109H1 scenes in Earthdata cloud
Hello Piyush,
Can you give it a try now? The data was reprocessed and for a while there were both the new and old version in the CMR, now those have been cleaned up. Thanks for your patience.
Brett
Can you give it a try now? The data was reprocessed and for a while there were both the new and old version in the CMR, now those have been cleaned up. Thanks for your patience.
Brett
- Mon Oct 30, 2023 3:52 pm America/New_York
- Forum: Questions/Comments
- Question: Is MOD44B v061 available in a STAC?
- Replies: 6
Re: Is MOD44B v061 available in a STAC?
Hi, Sorry for all the confusion with this. Recently with the new version and switch to the cloud things have bee changing rather quickly. Please notice you will not find any MODIS v061 with in the LPDAAC_ECS (https://cmr.earthdata.nasa.gov/stac/LPDAAC_ECS/collections/MOD44B.v061). In order to find t...
- Mon Oct 30, 2023 2:07 pm America/New_York
- Forum: Questions/Comments
- Question: Inquiry about MODIS Data Time Stamps
- Replies: 1
Re: Inquiry about MODIS Data Time Stamps
Hi Hadis, As you know we were discussing this through the lpdaac@usgs.gov email. So I will just post the answer the below for the user community. Thanks, Brett I am sorry, but there is not really a way to get that accurate of a time. For each pixel you will be able to get hourly average UTC of when ...
- Mon Oct 30, 2023 1:59 pm America/New_York
- Forum: Questions/Comments
- Question: LDOPE source code download
- Replies: 1
Re: LDOPE source code download
Hi,
You should not need to enter your Earthdata credentials to download any of the files from the LPDAAC LDOPE site. You may want to check your settings and/or try a different browser.
Can you send a link to where you are attempting to download the LDOPE source code?
Thanks,
Brett
You should not need to enter your Earthdata credentials to download any of the files from the LPDAAC LDOPE site. You may want to check your settings and/or try a different browser.
Can you send a link to where you are attempting to download the LDOPE source code?
Thanks,
Brett
- Fri Oct 13, 2023 10:34 am America/New_York
- Forum: Questions/Comments
- Question: MODIS to VIIRS transition
- Replies: 4
Re: MODIS to VIIRS transition
Hi, Let me start by first sending you this from the MxD09 User Guide, the VNP09 user guide mentions this also, but the MODIS user guide is a little more detailed on how the best available pixel is chosen: For each pixel, the compositing steps are 1) Observations from the same orbit are composited by...
- Fri Oct 13, 2023 9:39 am America/New_York
- Forum: Questions/Comments
- Question: Post-processing not available
- Replies: 3
Re: Post-processing not available
Hello,
Could you tell us how you are trying to process the LAI data, can you send us the URL of the processing tool?
Thanks,
Brett
Could you tell us how you are trying to process the LAI data, can you send us the URL of the processing tool?
Thanks,
Brett
- Tue Oct 10, 2023 1:04 pm America/New_York
- Forum: Questions/Comments
- Question: [MCD19A2] Band dimension variations for different subcategories
- Replies: 2
Re: [MCD19A2] Band dimension variations for different subcategories
Hi, I am not sure what is causing this issue. I pulled that granule from our archive (https://e4ftl01.cr.usgs.gov/MOTA/MCD19A2.061/2020.04.01/) and it shows the Optical_Depth_47 as 1200x1200 as it should be and the Glint_Angle at 240x240 as it should be. One thing I noticed however is your example b...