Because LAI product is 8bit data type, values are from 0-255. Table 4 of the user guide you provided a link to, says that:
valid range is 0-100, fill values are 249-255, and multiply by scale factor=0.1.
So, mask/filter out values above 100 and multiply by 0.1.
Search found 9 matches
- Thu Jun 30, 2022 9:59 am America/New_York
- Forum: Questions/Comments
- Question: Problems understanding MODIS LAI values
- Replies: 1
- Thu May 26, 2022 10:03 am America/New_York
- Forum: Questions/Comments
- Question: Cloud mask
- Replies: 3
Re: Cloud mask
Here is the example of using quality filtering in python from LPDAAC tutorial: https://lpdaac.usgs.gov/resources/e-learning/working-daily-nasa-viirs-surface-reflectance-data/ Also, see if you can use a LPDAAC toolbox: https://git.earthdata.nasa.gov/projects/LPDUR/repos/arcgis-modis-viirs-python-tool...
- Mon May 23, 2022 11:52 am America/New_York
- Forum: Questions/Comments
- Question: I wonder the meaning of reference pixel
- Replies: 7
Re: I wonder the meaning of reference pixel
From: https://seadas.gsfc.nasa.gov/help-7.5.2/visat/Reprojection.html#crsParameters under "GUI: Output Parameters": "Easting This is the distance away from the origin (x component) to place the reference pixel. This essentially has the effect of shifting the geographic boundaries of y...
- Mon May 23, 2022 10:41 am America/New_York
- Forum: Questions/Comments
- Question: I wonder the meaning of reference pixel
- Replies: 7
Re: I wonder the meaning of reference pixel
Here is a software description and the guideline:
https://seadas.gsfc.nasa.gov/help-7.5.2/visat/Reprojection.html#crsParameters
"GUI: Output Parameters" section has a detailed explanation.
https://seadas.gsfc.nasa.gov/help-7.5.2/visat/Reprojection.html#crsParameters
"GUI: Output Parameters" section has a detailed explanation.
- Fri May 20, 2022 5:59 pm America/New_York
- Forum: Questions/Comments
- Question: GEDI parameters
- Replies: 1
- Fri May 20, 2022 5:41 pm America/New_York
- Forum: Questions/Comments
- Question: HLS data Bulk Download
- Replies: 1
Re: HLS data Bulk Download
It takes some time to download (depends on your connection). Did it show you "Finished downloading (..)"? See the attachment.
- Fri May 20, 2022 5:15 pm America/New_York
- Forum: Questions/Comments
- Question: MODIS metadata download
- Replies: 2
Re: MODIS metadata download
If you are interested in the metadata records of your search, https://earthexplorer.usgs.gov/ allows you to export your results to different formats as: *.kmz, *.txt, *.csv, etc. with details about each record. MODIS data are under: NASA LPDAAC Collections. For MOD09A1v61, I got: Local Granule ID En...
- Thu May 19, 2022 4:52 pm America/New_York
- Forum: Questions/Comments
- Question: MODIS LAI scale factor in AppEEARS
- Replies: 3
Re: MODIS LAI scale factor in AppEEARS
After the order is completed, open README file. For point extraction it says: "## 3. Point Sample Extraction Process Datasets available in AppEEARS are served via OPeNDAP (Open-source Project for a Network Data Access Protocol) services. OPeNDAP services allow users to concisely pull pixel valu...
- Wed Apr 13, 2022 12:08 pm America/New_York
- Forum: Questions/Comments
- Question: Missing MOD11A2.061 tiles from 2001
- Replies: 5
Missing MOD11A2.061 tiles from 2001
Hello, I would like to inform that there are missing tiles from 2001 MOD11A2 v061. See e.g. https://e4ftl01.cr.usgs.gov/MOLT/MOD11A2.061/2001.09.22/ Those data are available for v006 (https://e4ftl01.cr.usgs.gov/MOLT/MOD11A2.006/2001.09.22/). It would be good to verify whole 2001 v061 processing his...