The latitude and longitude arrays stored in each level-2 file store the locations of every
pixel in the image data, so no, you do not need to re-project to do your match-ups.
Regards,
Norman
Search found 140 matches
- Mon Jun 22, 2020 11:32 am America/New_York
- Forum: Questions/Comments
- Question: Level-2 Coordinates
- Replies: 3
- Mon Jun 22, 2020 11:19 am America/New_York
- Forum: Questions/Comments
- Question: Missing data between L1&2 Browser and Order Data lists
- Replies: 4
Missing data between L1&2 Browser and Order Data lists
Hi all,The missing scene in the browser search results is caused by a logic bug in my browse.plcode that effects mixed day/night granules that span the prime meridian. Tommy pointedthis one out to me some years ago (I still have a note pinned to my bulletin board atGoddard should we ever get b...
- Tue May 12, 2020 3:10 pm America/New_York
- Forum: Questions/Comments
- Question: L1B files : Binning and format
- Replies: 3
L1B files : Binning and format
Since level-1 refers to the storage of radiometer data in sensor-viewcoordinates (i.e. scan-line and pixel), it is not possible (by definition) tocombine individual scenes into a daily level-1 file.You can, however, bin individual scenes and combine them into adaily level-3 format.For most of our pr...
- Tue May 05, 2020 10:30 am America/New_York
- Forum: Questions/Comments
- Question: No new VIIRSx RF and MODISx QL since 2020-04-14
- Replies: 4
No new VIIRSx RF and MODISx QL since 2020-04-14
I will leave it to others to say why recent MODIS products have not advancedbeyond preliminary quicklook versions, but I do see that fairly recent VIIRSproducts have. For example, for this file.https://oceandata.sci.gsfc.nasa.gov/cgi/getfile/V2020126055400.L2_SNPP_OC.ncncdump -h V2020126055400...
- Tue May 05, 2020 9:37 am America/New_York
- Forum: Questions/Comments
- Question: What is the processing schedule of 8-day composites
- Replies: 1
What is the processing schedule of 8-day composites
Hi Moritz,
Please see this post.
https://oceancolor.gsfc.nasa.gov/forum/oceancolor/topic_show.pl?pid=52764#pid52764
Norman
Please see this post.
https://oceancolor.gsfc.nasa.gov/forum/oceancolor/topic_show.pl?pid=52764#pid52764
Norman
- Tue May 05, 2020 9:33 am America/New_York
- Forum: Questions/Comments
- Question: No new VIIRSx RF and MODISx QL since 2020-04-14
- Replies: 4
No new VIIRSx RF and MODISx QL since 2020-04-14
Hi Julien,
The delay for refined products does not seem unusual to me,
but I am seeing MODIS quicklook products.
https://oceancolor.gsfc.nasa.gov/cgi/browse.pl?per=DAY&day=18387&sen=amod&dnm=D
Norman
The delay for refined products does not seem unusual to me,
but I am seeing MODIS quicklook products.
https://oceancolor.gsfc.nasa.gov/cgi/browse.pl?per=DAY&day=18387&sen=amod&dnm=D
Norman
- Thu Apr 09, 2020 9:00 am America/New_York
- Forum: Questions/Comments
- Question: Write L2_LAC_OC.nc data
- Replies: 5
Write L2_LAC_OC.nc data
Hello,Our level-2 products are written in NetCDF4/HDF5 format. Please see this page. https://oceancolor.gsfc.nasa.gov/docs/format/l2nc/The SeaDAS software that we distribute can already read that format.If you are looking for a more detailed description of the format...
- Wed Apr 08, 2020 11:24 am America/New_York
- Forum: Questions/Comments
- Question: browse.pl
- Replies: 4
browse.pl
Hi Bruce,There have been many changes (added missions, file-name-convention changes, etc.)since this forum thread that have caused the suggested wget calls to no longer work.My old browse code (never intended for such uses) is still limping along while otherswork out a design for a new browser that ...
- Mon Apr 06, 2020 10:01 am America/New_York
- Forum: Questions/Comments
- Question: Featured images
- Replies: 10
Featured images
Hi Fabrizio,Those images look much better now.Indeed you can perform most of the same operations using ImageMagick as you can ingimp. See, for instance, the "-compose" option to the convert command.https://imagemagick.org/Usage/compose/#mathNote, however, that sometimes blending mode...
- Thu Apr 02, 2020 2:02 pm America/New_York
- Forum: Questions/Comments
- Question: Featured images
- Replies: 10
Featured images
Oh, with regards to your comment about applying a palette under gimp: I do notuse the chlorophyll images in that way i.e. as indexed color look-up tables. I blendthe gray-scale chlorophyll images with the other layers using blending modes suchas "soft light". That particular bl...