Search found 141 matches

by OB WebDev - norman
Tue Jan 14, 2020 10:14 am America/New_York
Forum: Home
Question: modis-aqua adg_443_giop
Replies: 6

modis-aqua adg_443_giop

Hi Robert,I was a bit more careful this time, and I do see what you are seeing.The following three images show differences between subsequent8-day 9km composites of adg_443_giop.  Red indicates that adg isgreater in the minuend, while blue shows areas where adg is greaterin the subtrahend. Whit...
by OB WebDev - norman
Mon Jan 13, 2020 5:06 pm America/New_York
Forum: Home
Question: modis-aqua adg_443_giop
Replies: 6

modis-aqua adg_443_giop

Um, strike that image.  I just realized I didn't leave out the "no data" areas.
I'll have another look at this tomorrow, but if you could provide any additional
details in the mean time, that might help make sure I am looking in the
right place.

Norman
by OB WebDev - norman
Mon Jan 13, 2020 4:54 pm America/New_York
Forum: Home
Question: modis-aqua adg_443_giop
Replies: 6

modis-aqua adg_443_giop

Hi Robert,I just computed the difference in the adg_443 values from these two files.A20193292019336.L3m_8D_IOP_adg_443_giop_4km.ncA20193372019344.L3m_8D_IOP_adg_443_giop_4km.ncI got a global field that looks like the attached image where red regions have higheradg in the first 8-day period and blue ...
by OB WebDev - norman
Mon Dec 09, 2019 12:02 pm America/New_York
Forum: Home
Question: True Color
Replies: 2

True Color

I don't know what you consider high resolution, but the NASAEarthData folks have a WorldView browser that covers resolutionsdown to roughly 500-meter pixels.https://worldview.earthdata.nasa.gov/The Europeans have a browser for their Sentinel-2 data which have10-meter resolution.https://apps.sent...
by OB WebDev - norman
Thu Oct 31, 2019 8:53 am America/New_York
Forum: Home
Question: Horizontal lines in MODIS Aqua data counts
Replies: 7

Horizontal lines in MODIS Aqua data counts

Hi Eligio,

As far as I am aware, we do not distribute SMI count files.
Which SMI files are you using?   If you want a proper image
showing the valid number of observations at any location,
then you should be using the L3 bin files as Don and George
suggested.

Regards,
Norman
by OB WebDev - norman
Wed Oct 30, 2019 9:08 am America/New_York
Forum: Home
Question: L2gen process the estuary and coast have some problem
Replies: 16

L2gen process the estuary and coast have some problem

Hi,

MODIS data have a maximum resolution of 250 meters (at nadir,
for just two bands).  The resolution is limited by the hardware flying
in space.  Representing MODIS data at 30-meter resolution is just
creating data.

Regards,
Norman
by OB WebDev - norman
Thu Oct 24, 2019 10:37 am America/New_York
Forum: Home
Question: getfile problem
Replies: 13

getfile problem

OK. Great.

Norman
by OB WebDev - norman
Thu Oct 24, 2019 10:31 am America/New_York
Forum: Home
Question: getfile problem
Replies: 13

getfile problem

Hi,

Could you please give us some additional information?
You will find some instructions here.

https://oceancolor.gsfc.nasa.gov/forum/oceancolor/topic_show.pl?tid=6447

Thanks,
Norman
by OB WebDev - norman
Thu Aug 08, 2019 3:52 pm America/New_York
Forum: Home
Question: Unable to download ancillary data
Replies: 2

Unable to download ancillary data

Our firewalls do impose automatic blocks on IP addresses thatexceed certain limits.  You may email connection_problems@oceancolor.sci.gsfc.nasa.govand provide the information described in the following post ifyou think this may have happened to you.https://oceancolor.gsfc.nasa.gov/forum/oceanco...
by OB WebDev - norman
Mon Jun 24, 2019 12:23 pm America/New_York
Forum: Home
Question: speeding up orders l2 browser
Replies: 3

speeding up orders l2 browser

Assuming you have the network bandwidth, a faster way could be
to just download the unextracted VIIRS files and do the extractions
yourself on your own machine.

Regards,
Norman