Search found 181 matches

by avmehta
Sat May 30, 2020 10:34 am America/New_York
Forum: Questions/Comments
Question: OLCI Data Download
Replies: 7

OLCI Data Download

Hello,  I am trying to download OLCI data from OC L1&L2 Browser. I have selected dates/geographical region and get 506 swaths. I chose 'ORDER DATA' and also selected 'Do extract my order for me' and picked Level-1 data. I submitted the order and saved the urls in a file. Sho...
by avmehta
Wed Apr 29, 2020 8:58 am America/New_York
Forum: Questions/Comments
Question: l2gen products
Replies: 45

l2gen products

Great! Thanks for clarifying this, Sean.
Amita
by avmehta
Mon Apr 27, 2020 4:04 pm America/New_York
Forum: Questions/Comments
Question: l2gen products
Replies: 45

l2gen products

Thanks Danny. I am running the GUI and gpt on two different computers. I am note sure that only rasters reprojected are the ones you view! I open an L2 file (.nc) in GUI created by l2gen on my Linux machine via a batch job, just select the file and choose raster-->reproject! There is an option to sa...
by avmehta
Mon Apr 27, 2020 12:18 pm America/New_York
Forum: Questions/Comments
Question: l2gen products
Replies: 45

l2gen products

Hello,
Thanks for the information.  I would  run l2gen with these options.
  I just want to make sure that I can then repoeject the cropped L2 data. I seem to remember from some comment in the forum that entire image tile is required  for reprojection.
Amita
by avmehta
Mon Apr 27, 2020 12:13 pm America/New_York
Forum: Questions/Comments
Question: l2gen products
Replies: 45

l2gen products

Thanks a lot for the explanation. I am still wondering why the gpt reprojection would take such a long time compared to the GUI processing! Do you know if that is a common experience? May be GUI uses different defaults ?
Thanks again.
Amita
by avmehta
Sun Apr 26, 2020 10:23 am America/New_York
Forum: Questions/Comments
Question: l2gen products
Replies: 45

l2gen products

Hello,  I was able to run gpt.sh by increasing java memory! Thanks.  For reprojecting OLI L2 file I used the following par file --  same as given in  the cookbook, but changed the resolution to be 30m (in degree).     pixelSize=0.000274658      resam...
by avmehta
Thu Apr 23, 2020 5:33 pm America/New_York
Forum: Questions/Comments
Question: l2gen products
Replies: 45

l2gen products

Oh - I remember now that I had similar  issue on my GUI when reprojecting and had to change the memory. I have increased the memory in both seadas.vmoptions and in gpt.sh -- the program now seems to be running!
Thank you so very much.
Amita
by avmehta
Thu Apr 23, 2020 3:05 pm America/New_York
Forum: Questions/Comments
Question: l2gen products
Replies: 45

l2gen products

Hi,  The Linux server I use a 64-bit machine. I installed java for 64-bit (previously I  installed was for 32-bit).  Here is what I get for my java version:java -versionjava version "1.8.0_251"Java(TM) SE Runtime Environment (build 1.8.0_251-b08)Java HotSpot(TM) 64-Bit Serve...
by avmehta
Thu Apr 23, 2020 12:03 pm America/New_York
Forum: Questions/Comments
Question: l2gen products
Replies: 45

l2gen products

Hello, Thanks for the detail information. I use GUI on my Mac and trying run this command-line version on my Linux server which has Java version 1.7.I installed jre1.8 on my server and changed the path in gpt.sh ($app_java_home/bin/java). Now it does have access to v1.8 and the program ran but it lo...
by avmehta
Thu Apr 23, 2020 1:00 am America/New_York
Forum: Questions/Comments
Question: l2gen products
Replies: 45

l2gen products

Hello,   I am trying to use gpt.sh for re-projection. It uses ReprojectGeoLatLon.xml.  Here are some lines from the sample fileI found from GptCookbook . For the spheroid, 637837.0 is earth's radius but not sure what 298.0 is. Also, in UNIT["degree",0.017453292519943295]...