Search found 227 matches

by OB SeaDAS - knowles
Thu Apr 08, 2021 4:59 pm America/New_York
Forum: 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: 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: 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: 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: 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: 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...
by OB SeaDAS - knowles
Fri Jan 08, 2021 10:45 am America/New_York
Forum: 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

After entering the final lat/lon textfield, try clicking on another textfield to trigger the autofill ... do the pixel textfields autofill if you do this?  The pixels values get autofilled via the "Run" button action, however you won't see it because the GUI closes and runs, so we...
by OB SeaDAS - knowles
Thu Jan 07, 2021 11:30 am America/New_York
Forum: Questions/Comments
Question: Get the value from scatter plot
Replies: 2

Get the value from scatter plot

A scatterplot cannot create or export ROI data.  You might need to clarify what you are doing and how you are exporting the data.  I do not see a region of interest vector in the image which you show.  You didn't check the ROI checkbox so your scatterplot is based on the whole ima...
by OB SeaDAS - knowles
Thu Jan 07, 2021 10:59 am America/New_York
Forum: 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

To create a quasi true color plate carrée mapped image for a ROI (region of interest) within a MODIS file the following GUI steps can be done:Example file: https://oceandata.sci.gsfc.nasa.gov/ob/getfile/A2010283180500.L1A_LAC.bz2Region of interest: north=39.0, south=37.0, west=-78.0, east=-75.0 1. ...
by OB SeaDAS - knowles
Thu Jan 07, 2021 9:18 am America/New_York
Forum: Questions/Comments
Question: Draw polygon on a scatter plot in SeaDAS
Replies: 5

Draw polygon on a scatter plot in SeaDAS

The scatterplot is created from the image.  You can mask areas of the image by drawing on the image using the polygon, ellipse, ... tools.  You can then apply this mask to refine the scatterplot.  However there are no tools in SeaDAS to enable the user to draw on the scatterplot and h...