Search found 145 matches
- Fri Sep 22, 2017 4:23 pm America/New_York
- Forum: Home
- Question: Aqua MODIS Calcite product
- Replies: 7
Aqua MODIS Calcite product
Hi Lionel,Are you applying the scale (slope) and offset (intercept) to the data?Compare, for example, August 2013 with August 2014.h5dump -a /pic/scale_factor A20132132013243.L3m_MO_PIC_pic_9km.ncHDF5 "A20132132013243.L3m_MO_PIC_pic_9km.nc" {ATTRIBUTE "scale_factor" { ...
- Fri Sep 08, 2017 4:56 pm America/New_York
- Forum: Home
- Question: Do L2 SNPP SST data have a flag to distinguish day/night SST?
- Replies: 9
Do L2 SNPP SST data have a flag to distinguish day/night SST?
Hi Jianke,Yes, "Mixed" means that the scene spans the day/night terminator.When I need to know the day/night status of a single pixel, I comparethe pixel's position vector with the solar position vector like this. /* Get the solar position vector. */ l_sun(yea...
- Fri Jun 30, 2017 3:57 pm America/New_York
- Forum: Home
- Question: What's the default for dnm?
- Replies: 1
What's the default for dnm?
Hi Bruce,Below are three specific examples.https://oceancolor.gsfc.nasa.gov/cgi/browse.pl?sub=level1or2list&per=MO&day=17136&sen=v0&n=70&s=50&w=-30&e=-5&dnm=Dhttps://oceancolor.gsfc.nasa.gov/cgi/browse.pl?sub=level1or2list&per=MO&day=17136&sen=v0&n=70&...
- Mon Jun 12, 2017 1:07 pm America/New_York
- Forum: Home
- Question: best suited sensor and algorithm for my work
- Replies: 1
best suited sensor and algorithm for my work
It depends on the lake you are interested in. Most South Florida lakes will be too smallto monitor with the standard ocean color sensors like MODIS and VIIRS. Lake Okeechobeeis large enough, but you may need to develop your own bloom-detection algorithm becausethat lake does not meet all...
- Mon Jun 12, 2017 10:12 am America/New_York
- Forum: Home
- Question: Geographical coordinate system used for MODIS aqua data
- Replies: 4
Geographical coordinate system used for MODIS aqua data
Mohd,Our satellite ocean-color sensors "see" different amounts of light reflectedfrom the water column depending on the optical characteristics of the water(turbidity, presence of chlorophyll, CDOM, etc.). The number of photonsreturned from the water column decreases exponentially as...
- Thu Jun 08, 2017 8:29 am America/New_York
- Forum: Home
- Question: Direct Data Access, how to retrieve metadata?
- Replies: 12
Direct Data Access, how to retrieve metadata?
Hi,Our level-2 browser is designed to perform geographical andtemporal searches of the data in our archive.https://oceancolor.gsfc.nasa.gov (/cgi/browse.pl?file=A2017001000000.L2_LAC_OC). Please click on the Help button on that page for more information.Regards,Norman
- Wed Jun 07, 2017 5:00 pm America/New_York
- Forum: Home
- Question: IP Blocked
- Replies: 4
IP Blocked
What is the IP address that you are coming from?
- Wed May 31, 2017 9:10 am America/New_York
- Forum: Home
- Question: Cannot download data from oceandata.sci.gsfc.nasa.gov
- Replies: 9
Cannot download data from oceandata.sci.gsfc.nasa.gov
Oops, my previous reply was incorrect since I forgot to includethe region of interest. I tried shorter and shorter periods andfinally got six months to work. (A year and a half still did notwork.)https://oceancolor.gsfc.nasa.gov/cgi/browse.pl?sub=level1or2list&per=CSTM&day=11872+...
- Wed May 31, 2017 8:49 am America/New_York
- Forum: Home
- Question: Cannot download data from oceandata.sci.gsfc.nasa.gov
- Replies: 9
Cannot download data from oceandata.sci.gsfc.nasa.gov
Sean is right. I did try your search with just the first half of the mission
and got it to return 510,805 results.
https://oceancolor.gsfc.nasa.gov/cgi/browse.pl?sub=level1or2list&per=CSTM&day=11872+3103&sen=am&dnm=D
Norman
and got it to return 510,805 results.
https://oceancolor.gsfc.nasa.gov/cgi/browse.pl?sub=level1or2list&per=CSTM&day=11872+3103&sen=am&dnm=D
Norman
- Tue May 30, 2017 12:48 pm America/New_York
- Forum: Home
- Question: Cannot download data from oceandata.sci.gsfc.nasa.gov
- Replies: 9
Cannot download data from oceandata.sci.gsfc.nasa.gov
Hi Kim,
Could you please be more specific about which pages you were trying to access and
what steps you followed that got you the error page, so that we can try to reproduce
the problem on our end?
Regards,
Norman
Could you please be more specific about which pages you were trying to access and
what steps you followed that got you the error page, so that we can try to reproduce
the problem on our end?
Regards,
Norman