Satellite Data Guide


Spatial Extent:

Northeastern U.S. Coastal Ocean Region

Spatial Resolution:

1.25 x 1.25 km (nominal)

Temporal Characteristics:

 

Time Steps Available:

8 day composites

Date range represented:

These data products are being distributed free of charge. Recipients have a responsibility to:

Acknowledge the Goddard Space Flight Center DAAC and the University of New Hampshire's Coastal Observing Center (COOA) as the data provider of this dataset.

This data collection can be selected and ordered through our Search and Retrieve Tool.

 

Footprint Map: the location of all MODIS scenes available from COOA for the Northeastern U.S. Coastal Ocean region.

Summary:

This collection contains maps for the western North Atlantic derived from satellite remote sensing data. Two spatially and temporally aggregated MODIS (Moderate Resolution Imaging Spectroradiometer) ocean data products are currently available for the Northeastern U.S. Coastal Ocean Region (including the Gulf of Maine and Georges Bank).

Data holdings include yearly time-series of 8-day composites of chlorophyll-a and sea surface temperature from the MODIS sensors onboard the Terra and Aqua satellites. These regional data sets were created from daily MODIS Level 2 products furnished by the NASA Ocean Color Processing System. Browse products include year-long movie loops and jpeg images. Additional data files containing the number of daily images (counts) that were used for each pixel average are also provided.

 

 

Available Data Holdings:

Holdings

Units

Data Type

Land Mask Value

Bad/Missing
Pixels
*

Additional Information

chlorophyll_a**

mg/m3

float32 (real)

-300

-299

SeaWiFS-analog product (OC3M)

sea surface temperature (sst)**

deg. C

float32 (real)

-300

-299

Daytime SST from 11-micron band

* These values are used to designate questionable pixels. For more information about MODIS data quality issues please see the MODIS ocean website.

** A file containing the counts of the number of days used to calculate the average chlorophyll and SST values are included with all satellite data orders.

 

Daily MODIS Data:

COOA offers 8-day composites of chlorophyll-a and sea surface temperature through our Search and Retrieve Tool , but daily MODIS data are also available by special request. Please contact User Support if you'd like more information on obtaining daily MODIS data.

 

Platform Information:

COOA distributes MODIS data from both the Terra and Aqua satellites. The date ranges for each satellite are:

Satellite:

Start Date:

End Date:

Terra

2000-07-11

2004-01-25

Aqua

2004-01-01

ongoing

 

Using Imagery Data in ESRI Software

Data users that are interested in using COOA imagery or raster format data in ESRI software products may want to consult this guide for tips on ingesting, displaying and analyzing such data. For further inquiries about importing imagery data please contact User Support.

 

Data Mapping Information:

Projection information: Lambert's Conformal Conic

Center lat/lon: 40, -70

Standard Parallels: 43.833, 36.1667

Bounding Coordinates: NW Corner: 46.86N, -80.64W
SE Corner: 32.36N, -61.40W

Image size: 1300 x 1300 pixels

Pixel size: 1.25 km at the origin

 

 

Browse Products Available:

Animated time series of MODIS chlorophyll-a and sea surface temperature data starting in 2000 and updated as new data are available.

Static images (thumbnail and full size images) of MODIS ocean data starting in 2000 and updated as new data are available.

More information on MODIS Ocean Products can be found on the MODIS Ocean web site

 

 

Data Providers:

Janet Campbell, Director
Coastal Observing Center
Institute for the Study of Earth, Oceans, and Space
University of New Hampshire
Durham, NH 03824
e-mail: janet.campbell@unh.edu

Tim Moore
Ocean Process Analysis Laboratory
Institute for the Study of Earth, Oceans, and Space
University of New Hampshire
Durham, NH 03824
e-mail: timothy.moore@unh.edu

Questions or concerns?: contact User Support

Latest Data Update:

Continual

Last Doc. Updated:

2007-06-19

Doc. Updated By:

Denise Blaha