Search found 165 matches

by avmehta
Sat Jun 20, 2020 7:50 pm America/New_York
Forum: Questions/Comments
Question: Level-2 Coordinates
Replies: 3

Level-2 Coordinates

Hello,    I am trying to match  pixel location in  OLI, OLCI, and MSI Level-2 image with in-situ data. I colocate according to latitude-longitude of the in situ point measurements data and the lat-lon arrays available in the L2 images. My question is, do I have to re-project the ...
by avmehta
Mon Jun 08, 2020 8:46 pm America/New_York
Forum: Questions/Comments
Question: Pixel extraction and L1 cloudy image question
Replies: 0

Pixel extraction and L1 cloudy image question

Hi Sean, Thanks much for the clarification.   I have  another question related to lat-lon and line-pix.  I have lat-lon of in-situ data points and  I am using lonlat2linpix function to get corresponding line and pixel in the image to extract them. I am doing this for OLCI, OLI, a...
by avmehta
Mon Jun 08, 2020 4:18 pm America/New_York
Forum: Questions/Comments
Question: getanc.py
Replies: 12

getanc.py

Hello,
     I have a question about l2gen output file. In the L2 netcdf output file I see longitudes slon, clon, and elon. And similar for latitude. I use clon and clat of each pixel as geolocation of that pixel when using in calculations. Is this a correct assumption?
Thanks.
Amita
by avmehta
Thu Jun 04, 2020 11:37 am America/New_York
Forum: Questions/Comments
Question: SeaDAS Visualization on Linux
Replies: 1

SeaDAS Visualization on Linux

Hello,  I use SeaDAS GUI on my Mac for raster calculations and visualization.  I am trying do the same on a Linux computer. When I launch 'seadas'  I get the following message window: "An Internal Error occurred. Not able to create user interface control for page componen...
by avmehta
Thu Jun 04, 2020 10:51 am America/New_York
Forum: Questions/Comments
Question: getanc.py
Replies: 12

getanc.py

Thanks Don.
Amita
by avmehta
Thu Jun 04, 2020 10:02 am America/New_York
Forum: Questions/Comments
Question: getanc.py
Replies: 12

getanc.py

Hi Sean,  Thanks for the clarification.   I checked on Earthdata and I do have accepted EULA for Sentinel.   I have looked at the download methods and that is how I used wget. In any method  I can not figure out how to specify geographical region ( as I don't want g...
by avmehta
Tue Jun 02, 2020 5:32 pm America/New_York
Forum: Questions/Comments
Question: getanc.py
Replies: 12

getanc.py

Thanks George for the reply.  -  I am having this problem for several days so may not be EOSDIS  - Also,  I download other data from EOSDIS (Earthdata/GES DISC) with wget without any problem.  But these are not  simple files - they are directories  as I mentioned i...
by avmehta
Tue Jun 02, 2020 5:05 pm America/New_York
Forum: Questions/Comments
Question: OLCI Data Download
Replies: 7

OLCI Data Download

Yes, that must be so. I checked and it does not say it is a zip file! I get the following:S3A_OL_1_EFR____20190731T150748_20190731T151048_20190801T182818_0179_047_296_2340_LN1_O_NT_002.zip: HTML document, ASCII text, with very long linesI also looked at the direct access option - for example this li...
by avmehta
Tue Jun 02, 2020 4:00 pm America/New_York
Forum: Questions/Comments
Question: OLCI Data Download
Replies: 7

OLCI Data Download

The url list I get when I order data has flies with .zip.
  I have used L-1 S3A data before and they do come as zipped directories.
Thanks.
Amita
by avmehta
Tue Jun 02, 2020 3:06 pm America/New_York
Forum: Questions/Comments
Question: OLCI Data Download
Replies: 7

OLCI Data Download

Thanks Dana.I tried again and I do get the SA3 zip files (which are supposed to be directories). But when I try to unzip the files I get the following message (I have posted this also):Archive:  S3A_OL_1_EFR____20190731T150748_20190731T151048_20190801T182818_0179_047_296_2340_LN1_O_NT_002.zip&#...