WMS
WMS for Kd490, NOAA S-NPP VIIRS, Science Quality, U.S. East Coast 750m, Level 3, 2012-present, Annual
Annual average diffuse attenuation coefficient at 490nm (Kd490) for the U.S. East Coast, from the VIIRS instrument aboard the S-NPP satellite, 2012-present, is produced using the Wang et al. (2009) algorithm, in which separate algorithms for clear open ocean and turbid coastal waters are weighted into a combined product. This approach improves accuracy across ocean conditions. Atmospheric correction uses the near-infrared (NIR) approach of Jiang and Wang (2014), referred to as the BMW atmospheric correction. The individual overpasses are composited into daily mean grids (~840m), then the daily mean grids are averaged into annual gridded chlorophyll-a. More info: https://eastcoast.coastwatch.noaa.gov/cw_viirs_k490.php
color
data
diffuse attenuation coefficient at 490nm
downwelling radiative flux
downwelling spectral irradiance
Earth Science > Oceans > Ocean Optics > Attenuation/Transmission
Earth Science > Oceans > Ocean Optics > Extinction Coefficients
Earth Science > Oceans > Ocean Optics > Ocean Color
Earth Science > Oceans > Ocean Optics > Turbidity
Earth Science > Oceans > Water Quality
image
imager
imager/radiometer
Kd-490
Kd490
kd490
kd_490
L3
level 3
level-3
light attenuation
mapped
ocean
ocean color
oceans
optical
polar-orbiting
radiance
radiometer
remote sensing
s-npp
satellite
sea
seasonal
seawater
snpp
VIIRS
viirs
visible
water
water quality
STAR IT
NOAA.GOV
ERDDAP Relations
postal
5830 University Research CT
College Park
MD
20740
USA
+1 301 683 3503
coastwatch.info@noaa.gov
NONE
NONE
16
4096
4096
text/xml
image/png
XML
INIMAGE
BLANK
Kd490, NOAA S-NPP VIIRS, Science Quality, U.S. East Coast 750m, Level 3, 2012-present, Annual
Land
Land
CRS:84
EPSG:4326
-180.0
180.0
-90
90
NOAA NOS GSHHS
Kd490, NOAA S-NPP VIIRS, Science Quality, U.S. East Coast 750m, Level 3, 2012-present, Annual
CRS:84
EPSG:4326
-85.07597103632074
-59.95131255561142
22.107128596152897
46.0659239654323
2012-07-02T21:24:32Z,2013-07-02T19:01:48Z,2014-07-02T19:11:18Z,2015-07-02T19:15:47Z,2016-07-02T07:10:50Z,2017-07-02T19:06:35Z,2018-07-02T19:13:14Z,2019-07-02T18:31:30Z,2020-07-02T06:30:49Z,2021-07-02T19:10:39Z,2022-07-02T19:20:08Z
0.0
NOAA NESDIS CoastWatch East Coast Node
noaacwecnNPPVIIRSSQkd490EastCoastAnnual:kd_490
Kd490, NOAA S-NPP VIIRS, Science Quality, U.S. East Coast 750m, Level 3, 2012-present, Annual - kd_490
LandMask
LandMask
CRS:84
EPSG:4326
-180.0
180.0
-90
90
NOAA NOS GSHHS
Coastlines
Coastlines
CRS:84
EPSG:4326
-180.0
180.0
-90
90
NOAA NOS GSHHS
LakesAndRivers
Lakes and Rivers
CRS:84
EPSG:4326
-180.0
180.0
-90
90
pscoast in GMT
Nations
National Boundaries
CRS:84
EPSG:4326
-180.0
180.0
-90
90
pscoast in GMT
States
State Boundaries
CRS:84
EPSG:4326
-180.0
180.0
-90
90
pscoast in GMT