Search found 221 matches

by OB SeaDAS - knowles
Wed Jul 07, 2021 11:35 am America/New_York
Forum: All Questions/Comments
Question: Exporting Ocean Color Chlorophyll data
Replies: 1

Re: Exporting Ocean Color Chlorophyll data

This may help. In SeaDAS, there is a pixel extraction tool. Menu > Raster > Extract > Extract Pixel Values. This tool extracts pixels from a raster grid around a placed pin in the GUI view window (or a set of pins). You can adjust the extraction grid size as well as set flags. This tool will extract...
by OB SeaDAS - knowles
Mon Jun 28, 2021 5:13 pm America/New_York
Forum: All Questions/Comments
Question: data processing # HAWKEYE
Replies: 1

Re: data processing # HAWKEYE

The L2 Hawkeye file might be large. You could try increasing your virtual memory available to SeaDAS 7 GPT.

Find the file:
[SEADAS_APP_HOME]/bin/gpt.sh (or gpt.command or gpt.exe)

Try changing the line:
-Xmx1024M \

to:
-Xmx2048M \

or perhaps:
-Xmx4096M \
by OB SeaDAS - knowles
Tue Jun 22, 2021 11:15 am America/New_York
Forum: All Questions/Comments
Question: Colorbar
Replies: 2

Re: Colorbar

Your image does not contain enough pixels and this is why the color bar is blurry. You need to export the scene and the color bar as separate files. You can then assemble them together in PowerPoint or some other software if you wish to display them without resolution issues.
by OB SeaDAS - knowles
Mon Jun 21, 2021 11:40 am America/New_York
Forum: All Questions/Comments
Question: Colorbar
Replies: 2

Re: Colorbar

You are probably talking about the color bar layer. The color bar is a raster image layer placed on top of a raster image of the scene. If the number of pixels in your cropped image is small, then the color bar will be blurry because of the low resolution. You can export the color bar as a file, in ...
by OB SeaDAS - knowles
Thu Apr 08, 2021 4:59 pm America/New_York
Forum: All Questions/Comments
Question: color bar in seadas 8.0 beta version
Replies: 5

Re: color bar in seadas 8.0 beta version

We are currently developing the color bar tool for SeaDAS 8.x. It will be similar to the color bar tool in SeaDAS 7.x, but a bit better. In the meantime, you may wish to use SeaDAS 7.5.3 for exporting your color bar.
by OB SeaDAS - knowles
Tue Mar 30, 2021 1:22 pm America/New_York
Forum: All Questions/Comments
Question: OLCI data peocessing
Replies: 1

Re: OLCI data peocessing

Hi Amita, You would need to tell us a lot more for us to understand what you are doing. Judging by the faint semi-transparent compass pattern at the top left of your image it looks like you are doing a screenshot of bands viewed within the GUI. I do see a dashed line. Based on the Chesapeake Bay sce...
by OB SeaDAS - knowles
Mon Mar 15, 2021 3:34 pm America/New_York
Forum: All Questions/Comments
Question: Processing level 0 MODIS Aqua Product
Replies: 2

Re: Processing level 0 MODIS Aqua Product

SeaDAS now supports processing in Windows OS.

You can install the SeaDAS application in Windows OS (see:
https://seadas.gsfc.nasa.gov/downloads)

You can then process within the GUI on your windows machine (see:
https://seadas.gsfc.nasa.gov/client_server)
by OB SeaDAS - knowles
Fri Mar 12, 2021 11:28 am America/New_York
Forum: All Questions/Comments
Question: Mask generation w/l2bin?
Replies: 2

Re: Mask generation w/l2bin?

Level-2 flags (masks) cannot be output products of the l2bin. The reasoning is that for a given binned output file pixel, you can have multiple source input files which contribute to the bin aggregate depending on the flag (mask) of the particular source input file. Once a file is binned, the connec...
by OB SeaDAS - knowles
Thu Feb 18, 2021 11:43 am America/New_York
Forum: All Questions/Comments
Question: gpt MosaicGeneral
Replies: 7

gpt MosaicGeneral

Hi Amita,As previously noted in this thread, rhos_412 and other surface reflectances can in fact be negative, and for that matter could be greater than 1.0 as well.  Cloud shadow and cloud tops are 2 possible instances in which this might occur.  There could be other instances.  The f...
by OB SeaDAS - knowles
Mon Jan 11, 2021 8:47 am America/New_York
Forum: All Questions/Comments
Question: Creating a 250m MODIS-A quasi true colour cropped image
Replies: 6

Creating a 250m MODIS-A quasi true colour cropped image

Updating to SeaDAS 7.5.3 will fix your GUI problem regarding autofill of the extractor GUI.Alternatively, you can run this at the command line to retrieve the pixel values (using the example previously mentioned in this post).  Note in this case you will need to first generate GEO and L1B non-e...