Search found 141 matches

by OB WebDev - norman
Tue Jun 23, 2020 12:37 pm America/New_York
Forum: Home
Question: Level-2 Coordinates
Replies: 3

Level-2 Coordinates

Hi Amita,

I believe you are correct; you only need to install the mission-related files.

Norman
by OB WebDev - norman
Mon Jun 22, 2020 11:32 am America/New_York
Forum: Home
Question: Level-2 Coordinates
Replies: 3

Level-2 Coordinates

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
by OB WebDev - norman
Mon Jun 22, 2020 11:19 am America/New_York
Forum: Home
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...
by OB WebDev - norman
Tue May 12, 2020 3:10 pm America/New_York
Forum: Home
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...
by OB WebDev - norman
Tue May 05, 2020 10:30 am America/New_York
Forum: Home
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...
by OB WebDev - norman
Tue May 05, 2020 9:33 am America/New_York
Forum: Home
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
by OB WebDev - norman
Thu Apr 09, 2020 9:00 am America/New_York
Forum: Home
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...
by OB WebDev - norman
Wed Apr 08, 2020 11:24 am America/New_York
Forum: Home
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 ...
by OB WebDev - norman
Mon Apr 06, 2020 10:01 am America/New_York
Forum: Home
Question: Featured images
Replies: 13

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...