Suhung Shen James G. Acker Denis Nadeau George Serafino Goddard Earth Sciences (GES) Data and...
1
Suhung Shen James G. Acker Denis Nadeau George Serafino Goddard Earth Sciences (GES) Data and Information Services Center (DISC) Distributed Active Archive Center (DAAC) NASA Goddard Space Flight Center Greenbelt, Maryland 20771 USA Introduction Ocean Color Data are measurements of the light intensity at visible wavelengths, which are related to the presence of phytoplankton and particles in the water. The data have been widely used to study marine optical properties, biological productivity, air-sea interaction, and for other research topics. The GES DISC DAAC has archived ocean color data from several different sensors, including the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) on OrbView-2 and the Coastal Zone Color Scanner (CZCS) on Nimbus 7. The SeaWiFS data are from September 1997 to present, available with two weeks delay from real-time. The CZCS data are available from October 1978 to June 1986. WWW Browser: Spatial and temporal searching Viewing individual “browse” images Selecting desired files Ordering on-line documents Subscription: As data arrive, they are automatically placed in an order and sent to users Frequent, regular requests (daily, weekly, monthly, annually) Registration Required Users of SeaWiFS data (including collaborators of research papers) are required to register with the SeaWiFS Project to become SeaWiFS Authorized Research Users Username & Password Required GES DISC DAAC issues a username and password to SeaWiFS Authorized Research Users Data is FREE to authorized users Charges Apply for Commercial Use of SeaWiFS Data General Email: [email protected] Ocean Color Email: [email protected] GES DISC DAAC Toll Free Help Desk: (1-877) 422-1222 GES DISC DAAC Fax Line: (301) 614-5268 GES DISC DAAC Online: http://daac.gsfc.nasa.gov Access Data Online: http://daac.gsfc.nasa.gov http://daac.gsfc.nasa.gov/data/dataset/SEAWIFS/ Archive System and Distribution Statistics Subsets Data Archive & Distribution System Architecture SeaWiFS Data Monthly Archive/Distribution Volume Number of SeaWiFS Data Orders Cumulative Distributed Products Oracle Database Transfer Ingest Archive Validation Subscription Order Data Provider Users DAAC Web Ordering service EOSDIS service Data Clean Unix 1st 2nd FTP 0 500 1000 1500 2000 2500 3000 3500 4000 Archived Distribute Volume (GB) 1 s t 2 nd 3 rd Indicates SeaWifS Project Global Reprocessing 0 200 400 600 800 1000 1200 1400 1600 Subscriptio WWW HRPT L1A GAC L2 GAC L3 8-BIN L3 D-BIN L3 M-BIN Rec LAC ANC L1 CAL Others Regional Subsets of SeaWiFS HRPT Station Data (1 kilometer resolution data) Science Focus Web Page(s) (Compressed Volumes, to the end of December 2000) Total Distributed Volume: 23 TB L3 Daily 2164 GB L3 8-Day 2187 GB L2 GAC 2842 GB L1A GAC 3398 GB HRPT 8424 GB P o s t e r D e s i g n a n d P r o d u c t i o n b y J e n n M a h o n e y , 2 0 0 1 SeaWiFS Image of Fires Near San Diego, California January 3, 2001 Los Angeles Salton Sea San Diego Channel Is. Chlorophyll Concentrations Off of the South Carolina Shoreline April 25, 1998 On April 25, 1998, the SeaWiFS instrument obtained a nearly cloud- free image of the U.S. East Coast. This image shows the chlorophyll concentrations in the ocean waters off the shoreline of South Carolina. Both the flow of the Gulf Stream and the related communities of marine phytoplankton are affected by the Charleston Bump. Data Access SeaWiFS Data Restrictions SeaWiFS Points of Contact CZCS Data Products Sample Imagery HNSG HROM HJMS HHOB HMBR SeaWiFS Data Products Coccolithophorid Blooms In the Bering Sea April 25, 1998 Global Biosphere of Northern Hemisphere Summer • June 1998-August 1998 SeaWiFS Image September 15-16, 1997 Chlorophyll a Concentration (mg/m 3 ) Composite of all SeaWiFS land and ocean data acquired on September 15-16, 1997. Land and cloud are in “true color,” while derived ocean chlorophyll concentrations are colored as in the color scale. .01 .02 .03 .05 1 2 3 5 .1 .2 .3 .5 10 15 20 30 50
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Transcript of Suhung Shen James G. Acker Denis Nadeau George Serafino Goddard Earth Sciences (GES) Data and...
Suhung Shen
James G. Acker
Denis Nadeau
George Serafino
Goddard Earth Sciences (GES)
Data and Information Services Center (DISC)
Distributed Active Archive Center (DAAC)
NASA Goddard Space Flight Center
Greenbelt, Maryland 20771 USA
IntroductionOcean Color Data are measurements of the light intensity at visible wavelengths, which are related to the presenceof phytoplankton and particles in the water. The data have been widely used to study marine optical properties, biological productivity, air-sea interaction, and for other research topics.
The GES DISC DAAC has archived ocean color data from several different sensors, including the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) on OrbView-2 and the Coastal Zone Color Scanner (CZCS) on Nimbus 7. The SeaWiFS data are from September 1997 to present, available with two weeks delay from real-time. The CZCS data are available from October 1978 to June 1986.
WWW Browser: Spatial and temporal searching Viewing individual “browse” images Selecting desired files Ordering on-line documents
Subscription: As data arrive, they are automatically placed in
an order and sent to users Frequent, regular requests (daily, weekly,
monthly, annually)
Registration Required Users of SeaWiFS data (including collaborators of research
papers) are required to register with the SeaWiFS Project to become SeaWiFS Authorized Research Users
Username & Password Required GES DISC DAAC issues a username and password to SeaWiFS
Authorized Research Users Data is FREE to authorized users Charges Apply for Commercial Use of SeaWiFS Data
General Email: [email protected]
Ocean Color Email: [email protected]
GES DISC DAAC Toll Free Help Desk: (1-877) 422-1222
GES DISC DAAC Fax Line: (301) 614-5268
GES DISC DAAC Online: http://daac.gsfc.nasa.gov
Access Data Online:
http://daac.gsfc.nasa.gov
http://daac.gsfc.nasa.gov/data/dataset/SEAWIFS/
Archive System and Distribution Statistics
Subsets
Data Archive & Distribution System Architecture SeaWiFS Data Monthly Archive/Distribution Volume
Number of SeaWiFS Data Orders Cumulative Distributed Products
Oracle Database
Transfer
Ingest
Archive
Validation
SubscriptionOrder
Data Provider
Users
DAAC WebOrdering
service
EOSDISservice
Data CleanUnix
1st 2nd
FTP
0
500
1000
1500
2000
2500
3000
3500
4000Archived
Distributed
Vol
um
e (G
B)
1st 2nd
3rd
Indicates SeaWifS Project Global Reprocessing
0
200
400
600
800
1000
1200
1400
1600Subscription
WWW HRPT
L1A GAC
L2 GAC
L3 8-BIN
L3 D-BIN
L3 M-BIN
Rec LAC
ANC
L1 CAL
Others
Regional Subsets of SeaWiFS HRPT Station Data(1 kilometer resolution data)
Science Focus Web Page(s)
(Compressed Volumes, to the end of December 2000)Total Distributed Volume: 23 TB
L3 Daily2164 GB
L3 8-Day2187 GB
L2 GAC2842 GB
L1A GAC3398 GB
HRPT8424 GB
Po
ste
r De
sig
n a
nd
Pro
du
ctio
n b
y J
en
n M
ah
on
ey
, 20
01
SeaWiFS Image of FiresNear San Diego, California
January 3, 2001
Los Angeles
Salton Sea
San Diego
Channel Is.
Chlorophyll ConcentrationsOff of the
South Carolina ShorelineApril 25, 1998
On April 25, 1998, the SeaWiFS instrument obtained a nearly cloud-free image of the U.S. East Coast. This image shows the chlorophyll concentrations in the ocean waters off the shoreline of South Carolina. Both the flow of the Gulf Stream and the related communities of marine phytoplankton are affected by the Charleston Bump.
Data Access
SeaWiFS Data Restrictions
SeaWiFS Points of Contact
CZCS Data Products
Sample Imagery
HNSG
HROM
HJMS
HHOB
HMBR
SeaWiFS Data Products
Coccolithophorid BloomsIn the Bering Sea
April 25, 1998Global Biosphere of Northern Hemisphere
Summer • June 1998-August 1998SeaWiFS Image
September 15-16, 1997
Chlorophyll a Concentration (mg/m3)
Composite of all SeaWiFS land and ocean data acquired on September 15-16, 1997. Land and cloud are in “true color,” while derived ocean chlorophyll concentrations are colored as in the color scale.
.01 .02 .03 .05 1 2 3 5.1 .2 .3 .5 10 15 20 30 50
