Search found 266 matches

by OB SeaDAS - knowles
Wed Dec 06, 2017 11:08 am America/New_York
Forum: Questions/Comments
Question: Using GPT's WriteImage Operator to output GeoTIFF
Replies: 26

Using GPT's WriteImage Operator to output GeoTIFF

Note: Although VIIRS does contain 5 I-bands at 375m nadir spatial resolution, we are currently only supporting the 16 M-bands which are at 750m nadir spatial resolution.  (see instrument specs: https://ncc.nesdis.noaa.gov/documents/documentation/viirs-users-guide-tech-report-142a-v1.3.pdf)You do nee...
by OB SeaDAS - knowles
Tue Dec 05, 2017 8:28 am America/New_York
Forum: Questions/Comments
Question: Using GPT's WriteImage Operator to output GeoTIFF
Replies: 26

Using GPT's WriteImage Operator to output GeoTIFF

This may now be obvious, but to add to the response by gnwii, their is only one resultant product/band in your workflow and it is "sst".  The "band_1" you are seeing is "sst" and its misleading name is not referring to any source VIIRS bands or anything of that nat...
by OB SeaDAS - knowles
Mon Dec 04, 2017 1:30 pm America/New_York
Forum: Questions/Comments
Question: Using GPT's WriteImage Operator to output GeoTIFF
Replies: 26

Using GPT's WriteImage Operator to output GeoTIFF

Yes, once you have created the level3 file (output of l3mapgen) you can use mosaic or the other SeaDAS tools on that file. 

Danny
by OB SeaDAS - knowles
Mon Dec 04, 2017 12:02 pm America/New_York
Forum: Questions/Comments
Question: Using GPT's WriteImage Operator to output GeoTIFF
Replies: 26

Using GPT's WriteImage Operator to output GeoTIFF

Yes, you cannot send the mosaic file into l2bin (and it is not needed).  The OCSSW processing file flow and file formats are completely separate from the Mosaic file flow.  Send the level-2 files (outputted by l2gen) directly into l2bin (if more than one level2 file, which is likely your c...
by OB SeaDAS - knowles
Fri Dec 01, 2017 12:23 pm America/New_York
Forum: Questions/Comments
Question: Using GPT's WriteImage Operator to output GeoTIFF
Replies: 26

Using GPT's WriteImage Operator to output GeoTIFF

GPT does not yet support the addition of the palette and its criteria in the workflow of the nodes, with the exception of the WriteImage operator which can do this, but it is limited to only writing an image (and you are correct, currently only in png format).    In SeaDAS 7.5 (coming soon...
by OB SeaDAS - knowles
Mon Nov 20, 2017 1:41 pm America/New_York
Forum: Questions/Comments
Question: "Cannot Construct Databuffer" error despite 200Gb available RAM
Replies: 8

"Cannot Construct Databuffer" error despite 200Gb available RAM

Edit the file "seadas/bin/gpt.sh" in order to configure memory allocation for running SeaDAS in comand line (GPT) mode.  The file you edited "seadas/bin/seadas.vmoptions" is used with running SeaDAS in visual (GUI) mode.

Danny
by OB SeaDAS - knowles
Wed Nov 15, 2017 12:09 pm America/New_York
Forum: Questions/Comments
Question: [Help] Create Logical Expression(Math) Band
Replies: 2

[Help] Create Logical Expression(Math) Band

The bandMath expression  TSS = 1.7532*E^(204.26*Rrs_660)  is not doing what you think it is suppose to do.  You are confusing the caret operator "^", which is actually doing a bitwise exclusive-OR on two integers, with the a formatting style of writing "^" to repre...
by OB SeaDAS - knowles
Mon Nov 06, 2017 11:55 am America/New_York
Forum: Questions/Comments
Question: Mosaic / Reproject methods
Replies: 8

Mosaic / Reproject methods

Brian,In order to better help you with this and separate out the end of scan issues from nadir issues you might want to try the same file but using a region at nadir (in the  center file), say (21N 19S -71W -68E).  Let us know if you see the same type of discrepancies between your calculat...
by OB SeaDAS - knowles
Fri Nov 03, 2017 12:16 pm America/New_York
Forum: Questions/Comments
Question: Mosaic / Reproject methods
Replies: 8

Mosaic / Reproject methods

Regarding " (a 4 x 4 grid would cover 1km x 1km, which is bigger than the footprint size)"The grid used is that of the source file not the target "reprojected" file.   When you reproject to 250m, the adjacent pixels of the source file are orders of magnitude away from t...
by OB SeaDAS - knowles
Fri Nov 03, 2017 10:00 am America/New_York
Forum: Questions/Comments
Question: Mosaic / Reproject methods
Replies: 8

Mosaic / Reproject methods

Basically, regarding the source file, bilinear uses a grid size of 2x2 and bicubic uses a grid size of 4x4.(see link or also available within the SeaDAS internal help): https://seadas.gsfc.nasa.gov/help/general/ResamplingMethods.htmlThe reason you are not seeing a difference between these methods is...