Search found 33 matches

by andrew.meredith
Thu Mar 28, 2019 3:16 pm America/New_York
Forum: Questions/Comments
Question: 400 and 681 nm peaks for OLCI L2 Rrs retrievals with l2gen
Replies: 10

400 and 681 nm peaks for OLCI L2 Rrs retrievals with l2gen

I assume the offset i'm seeing in the attached scatter plot of two Rrs_681 bands created from an OLCI L1B file using SeaDAS 7.4 and SeaDAS v7.5 is related to this bug.Was the fixed for this bug released in any of the recent SeaDAS v7.5 minor level releases? If not, is there any work around. I tr...
by andrew.meredith
Tue Sep 25, 2018 2:58 pm America/New_York
Forum: Questions/Comments
Question: Anomalies after gpt reproject of MERIS FRS L2
Replies: 9

Anomalies after gpt reproject of MERIS FRS L2

I'll give that a try. Thank you.
by andrew.meredith
Mon Sep 24, 2018 10:30 am America/New_York
Forum: Questions/Comments
Question: Anomalies after gpt reproject of MERIS FRS L2
Replies: 9

Anomalies after gpt reproject of MERIS FRS L2

Thanks Sean.

Is it possible to override the product reader when using gpt? It looks like it may be possible in SNAP but I didn't see anything obvious in SeaDAS.
by andrew.meredith
Wed Sep 19, 2018 12:01 pm America/New_York
Forum: Questions/Comments
Question: Anomalies after gpt reproject of MERIS FRS L2
Replies: 9

Anomalies after gpt reproject of MERIS FRS L2

Hi,I just wanted to point out that this problem still exists in v7.5 and is noted with OLCI data also as seen in the attached (left side image) scene from central Florida. NaN's are masked as red. The masking within clouds is OK because the "applyValidPixelExpression" was set when repr...
by andrew.meredith
Thu May 31, 2018 8:58 am America/New_York
Forum: Questions/Comments
Question: Problems processing Sentinel-2 MSI L1C granules in v7.5
Replies: 3

Problems processing Sentinel-2 MSI L1C granules in v7.5

That worked! Thanks Sean.
Andrew
by andrew.meredith
Fri May 18, 2018 11:31 am America/New_York
Forum: Questions/Comments
Question: Problems processing Sentinel-2 MSI L1C granules in v7.5
Replies: 3

Problems processing Sentinel-2 MSI L1C granules in v7.5

Thanks for the v7.5 release!I ran into a few issues trying to process Sentinel-2 MSI L1C granules with l2gen. It appears some files are missing or misnamed. I was able to eventually process a granule but it required creating some symbolic links to make it work.Here's the command:l2gen ifile=data...
by andrew.meredith
Tue Jun 13, 2017 2:12 pm America/New_York
Forum: Questions/Comments
Question: OLCI mapping offset
Replies: 2

OLCI mapping offset

Thanks Sean. I was able to implement the fix and the first test looks good!

Andrew
by andrew.meredith
Thu Jun 08, 2017 3:34 pm America/New_York
Forum: Questions/Comments
Question: OLCI mapping offset
Replies: 2

OLCI mapping offset

I'm seeing offsets in the mapping of OLCI data processed with l2gen from L1B source data. The offset amount varies by day and with elevation but appears to repeat based on the Sentinel-3 27-day orbit cycle.The first attached image shows the L1B and L2 files overlaid with a vector polygon. The ap...
by andrew.meredith
Thu Apr 13, 2017 8:36 am America/New_York
Forum: Questions/Comments
Question: ancillary data selection rules
Replies: 1

ancillary data selection rules

I am attempting to process MODIS L0 data in a concurrent processing environment using SeaDAS v7.4 processing routines. I saw Martin's post and Sean's suggestions in https://oceancolor.gsfc.nasa.gov/forum/oceancolor/topic_show.pl?pid=24893;hl=concurrent%20processing for preventing my IP addre...
by andrew.meredith
Mon Mar 20, 2017 7:51 am America/New_York
Forum: Questions/Comments
Question: L1 Browser order request fails
Replies: 4

L1 Browser order request fails

Clearing the cache did it. Thanks.