Search found 12 matches

by pgarnesson
Tue Feb 26, 2019 8:28 am America/New_York
Forum: Questions/Comments
Question: VIIRS-JPSS1 assessment.
Replies: 3

VIIRS-JPSS1 assessment.

Dear Sean,
thank you for these information. Is there already a schedule for these 2 steps?
Philippe
by pgarnesson
Mon Feb 25, 2019 6:03 am America/New_York
Forum: Questions/Comments
Question: VIIRS-JPSS1 assessment.
Replies: 3

VIIRS-JPSS1 assessment.

It is great to have access to VIIRS-JPSS product using the oceancolor service!
Do you provide an assessment/report about it?
Thank you in adavance.
Philippe
by pgarnesson
Mon Feb 25, 2019 5:51 am America/New_York
Forum: Questions/Comments
Question: VIIRS-SNPP degradation since Dec 2017
Replies: 1

VIIRS-SNPP degradation since Dec 2017

Dear OceanColor team,it seems the degradation of VIIRSN has increased during 2018 for most of the wavelenght.Is there something planed to improve (as done with MODIS with continuous calibration)?I have also noted a recent switch to 9.3.0-V2019.0 processing: are these changes reported/detailed somewh...
by pgarnesson
Wed Jan 02, 2019 4:15 am America/New_York
Forum: Questions/Comments
Question: File access problems
Replies: 13

File access problems

Hi,we have similar issue to get some files, for instance:https://oceandata.sci.gsfc.nasa.gov/cgi/getfile/V2018225.L3m_DAY_SNPP_CHL_chlor_a_4km.ncbut is is fine with others. The problem seems linked to the file, not  to the connection.Details below:wget https://oceandata.sci.gsfc.nasa.gov/cgi/ge...
by pgarnesson
Thu Feb 15, 2018 10:06 am America/New_York
Forum: Questions/Comments
Question: VIIRS JPSS-1/NOAA-20
Replies: 1

VIIRS JPSS-1/NOAA-20

Hi,
in the future, do you plan to provide acces to Level-2 VIIRS/NOAA-20 OC products ?
Any schedule already available?
Thank you in advance.
Philippe
by pgarnesson
Fri Jan 19, 2018 2:37 am America/New_York
Forum: Questions/Comments
Question: MODIS data access interruption
Replies: 1

MODIS data access interruption

Hi,
no more L2 Modis data since the 17-Jan at about 0°E?
(https://oceancolor.gsfc.nasa.gov/cgi/browse.pl?sen=am)
Do you know when it will be restarted?
Regards, Philippe
by pgarnesson
Tue Jan 16, 2018 8:28 am America/New_York
Forum: Questions/Comments
Question: Comparison of MODIS/VIIRS R2018 OCX
Replies: 7

Comparison of MODIS/VIIRS R2018 OCX

Dear Sean,about L2 MODIS, some refined products are now available until the 21 Dec. This is fine, but in the same time we have observed that there are still  QL recently generated for October.ncdump -h A2017288235500.L2_LAC_OC.nc (uploaded using https://oceandata.sci.gsfc.nasa.gov/cgi/getfile)&...
by pgarnesson
Thu Jan 11, 2018 4:05 am America/New_York
Forum: Questions/Comments
Question: Comparison of MODIS/VIIRS R2018 OCX
Replies: 7

Comparison of MODIS/VIIRS R2018 OCX

Thank you Sean for these clarifications.About Refined MODIS product it is said in a recent annoucement:"The new approach means the "Quicklook" status may be retained  for up to 90 days from collection.".- It means Refined after the 15 October should be updated in the coming ...
by pgarnesson
Tue Jan 09, 2018 9:03 am America/New_York
Forum: Questions/Comments
Question: Comparison of MODIS/VIIRS R2018 OCX
Replies: 7

Comparison of MODIS/VIIRS R2018 OCX

We have done a first R2018 assessment to compare VIIRS & MODIS OCI chlorophyll for the last days.We observe a bias with VIIRS < MODIS.At global level, 75% of MODIS pixels exceed VIIRS of more than 10% (relative difference threshold),(see attachment showing the relative difference map for the las...
by pgarnesson
Wed Jul 12, 2017 5:51 am America/New_York
Forum: Questions/Comments
Question: MODIS & VIIRS processing version
Replies: 1

MODIS & VIIRS processing version

Hi,looking at the L2 products software_version tag:- there was a VIIRS change the 9-March 2017 from 8.10.3-r13529 to 9.0.2-V2016.4.1- there was a VIIRS & MODIS change the 28-June 2017 from 9.0.2-V2016.4.6 to 9.0.2-V2016.4.7   to return to 9.0.2-V2016.4.6 the 6th of July.Is there a documenta...