Search found 5 matches

by gisjie
Mon May 08, 2023 3:12 am America/New_York
Forum: Questions/Comments
Question: GPT mosaic missing data
Replies: 3

Re: GPT mosaic missing data

That's great, thank you very much! I was wondering if there are any other ways to perform mosaicking (reprojection and subset), such as through Python code. Are you aware of any options?
by gisjie
Fri May 05, 2023 9:51 am America/New_York
Forum: Questions/Comments
Question: GPT mosaic missing data
Replies: 3

GPT mosaic missing data

It's a bit strange that I'm experiencing some missing data when processing MODIS level 2 data using GPT Mosaic. In particular, there seem to be parts of the output Rrs and rhos that are missing, and the specific regions that are affected vary from image to image. I've attached an RGB image from L1ma...
by gisjie
Mon Mar 20, 2023 8:34 pm America/New_York
Forum: Questions/Comments
Question: l2gen and gpt processing over mid-pacific
Replies: 4

Re: l2gen and gpt processing over mid-pacific

Good idea. Thanks a lot!
by gisjie
Sat Mar 18, 2023 9:27 pm America/New_York
Forum: Questions/Comments
Question: l2gen and gpt processing over mid-pacific
Replies: 4

Re: l2gen and gpt processing over mid-pacific

Thanks! I tried l2gen the same Aqua image and got similar results from you. The issue should come from the GPT processing. Below is the graph xml file I used for mosaic, and the output array was 38500 x 1100. <graph id="AQUA_MODIS"> <version>1.0</version> <node id="MosaicNode"> <...
by gisjie
Fri Mar 17, 2023 12:30 am America/New_York
Forum: Questions/Comments
Question: l2gen and gpt processing over mid-pacific
Replies: 4

l2gen and gpt processing over mid-pacific

I try to process data over the mid-pacific with geographical range across the 180E/180W line. For exapmple, north=22, south=12,east=-175, west=175. But the level2 product from l2gen gave extremly large x dimension. I guess l2gen thought that the longitude is from 175W to 175E. I tried to use 185 as ...