Airborne Multi-angle Imaging SpectroRadiometer (AirMISR) Data from the Harvard 2003 Campaign

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: Airborne Multi-angle Imaging SpectroRadiometer (AirMISR) Data from the Harvard 2003 Campaign
Description:
Abstract:
The AIRMISR_HARVARD_2003 data set was asquired during a flight over the Harvard Forest, Massachusetts, USA, target as part of the AirMISR deployments from the Wallops Flight Facility during the August 2003 campaign. This particular flight took place on August 24, 2003. The Jet Propulsion Laboratory (JPL) in Pasadena, California provided the data. There were a total of two runs during this flight. A run comprises data collected from nine view angles acquired on a fixed flight azimuth angle. Each data file from one run contains either: a) Level 1B1 Radiometric product from one of the 9 camera angles or b) Level 1B2 Georectified radiance product from one of the 9 camera angles. Browse images in PNG format are available for the Level 1B1 product and browse images in JPEG format are available for the Level 1B2 product. The Airborne Multi-angle Imaging SpectroRadiometer (AirMISR) is an airborne instrument for obtaining multi-angle imagery similar to that of the satellite-borne Multi-angle Imaging SpectroRadiometer (MISR) instrument, which is designed to contribute to studies of the Earth's ecology and climate. AirMISR flies on the NASA ER-2 aircraft. The Jet Propulsion Laboratory in Pasadena, California built the instrument for NASA. Unlike the satellite-borne MISR instrument, which has nine cameras oriented at various angles, AirMISR uses a single camera in a pivoting gimbal mount. A data run by the ER-2 aircraft is divided into nine segments, each with the camera positioned to a MISR look angle. The gimbal rotates between successive segments, such that each segment acquires data over the same area on the ground as the previous segment. This process is repeated until all nine angles of the target area are collected. The swath width, which varies from 11 km in the nadir to 32 km at the most oblique angle, is governed by the camera's instantaneous field-of-view of 7 meters cross-track x 6 meters along-track in the nadir view and 21 meters x 55 meters at the most oblique angle. The along-track image length at each angle is dictated by the timing required to obtain overlap imagery at all angles, and varies from about 9 km in the nadir to 26 km at the most oblique angle. Thus, the nadir image dictates the area of overlap that is obtained from all nine angles. A complete flight run takes approximately 13 minutes. The 9 camera viewing angles are: 0 degrees or nadir 26.1 degrees, fore and aft 45.6 degrees, fore and aft 60.0 degrees, fore and aft 70.5 degrees, fore and aft For each of the camera angles, images are obtained at 4 spectral bands. The spectral bands can be used to identify vegetation and aerosols, estimate surface reflectance and ocean color studies. The center wavelengths of the 4 spectral bands are: 443 nanometers, blue 555 nanometers, green 670 nanometers, red 865 nanometers, near-infrared Two types of AirMISR data products are available - the Level 1 Radiometric product (L1B1) and the Level 1 Georectified radiance product (L1B2). The Level 1 Radiometric product contains data that are scaled to convert the digital output of the cameras to radiances and are conditioned to remove instrument-dependent effects. Additionally, all radiances are adjusted to remove slight spectral sensitivity differences among the detector elements of each spectral band. These data have a 7-meter spatial resolution at nadir and around 30-meter at the most oblique 70.5 degree angles. The Level 1 Georectified radiance product contains the Level 1 radiometric product resampled to a 27.5 meter spatial resolution and mapped into a standard Universal Transverse Mercator (UTM) map projection. Initially the data are registered to each camera angle and to the ground. This processing is necessary because the nine views of each point on the ground are not acquired simultaneously. Once the map grid center points are located in the AirMISR imagery through the process of georectification, a radiance value obtained from the surrounding AirMISR pixels is assigned to that map grid center. Bilinear interpolation is used as the basis for computing the new radiance. A UTM grid point falling somewhere in the image data will have up to 4 surrounding points. The bilinear interpolated value is obtained using the fractional distance of the interpolation point in the cross-track direction and the fractional distance in the along-track direction.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Bruegge, Carol J., Wedad A. Abdou, Nadine L. Chrien, Barbara J. Gaitley (1998). AirMISR spectral and radiometric performance studies. In Earth Observing System III, Proc. SPIE 3439, San Diego, CA, 19-21 July. Bruegge, C. J., N. L. Chrien, R. A. Kahn, J. V. Martonchik, David Diner (1998). MISR radiometric uncertainty analyses and their utilization within geophysical retrievals. Conference issue: New Developments and Applications in Optical Radiometry (NEWRAD '97), Metrologia., 35, 571-579. Bruegge, C. J., V. G. Duval, N. L. Chrien, R. P. Korechoff, B. J. Gaitley, and E. B. Hochberg (1998). MISR prelaunch instrument calibration and characterization results. IEEE Trans. Geosci. Rem. Sens., Vol. 36, pp. 1186-1198. Chrien, Nadine L., Carol J. Bruegge, Barbara J. Gaitley (2000). AirMISR laboratory calibration and in-flight performance results. Submitted to Remote Sens. Environment, December 1998. Diner, David J., et al. (1998). The Airborne Multi-Angle Imaging SpectroRadiometer (AirMISR): Instrument Description and First Results. IEEE Trans. Geosci. Rem. Sens., Vol. 36, No. 4.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20030824
Ending_Date: 20030824
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -72.45
East_Bounding_Coordinate: -71.81
North_Bounding_Coordinate: 42.78
South_Bounding_Coordinate: 42.28
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: PROJECT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword: EARTH SCIENCE > SPECTRAL/ENGINEERING > INFRARED WAVELENGTHS > INFRARED RADIANCE
Theme_Keyword: EARTH SCIENCE > SPECTRAL/ENGINEERING > VISIBLE WAVELENGTHS > VISIBLE RADIANCE
Theme_Keyword: NASA ER-2 > NASA EARTH RESOURCES-2
Theme_Keyword: AIRMISR > AIRBORNE MULTI-ANGLE IMAGING SPECTRORADIOMETER
Theme_Keyword: AIRMISR > AIRBORNE MULTI-ANGLE IMAGING SPECTRORADIOMETER
Theme_Keyword: EOSDIS > EARTH OBSERVING SYSTEM DATA INFORMATION SYSTEM
Theme_Keyword: ESIP > EARTH SCIENCE INFORMATION PARTNERS PROGRAM
Theme_Keyword: Nasa Er-2
Theme_Keyword: Cameras
Theme_Keyword: Eosdis
Theme_Keyword: IMAGERY/BASE MAPS/EARTH COVER
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MASSACHUSETTS
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: CAROL J. BRUEGGE
Contact_Position: INVESTIGATOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Jet Propulsion Laboratory
Address: Mail Stop 169-237
Address: 4800 Oak Grove Drive
City: Pasadena
State_or_Province: CA
Postal_Code: 91109
Country: USA
Contact_Voice_Telephone: (818) 354-4956
Contact_Electronic_Mail_Address: Carol.J.Bruegge@jpl.nasa.gov
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Not Available
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 27.5 Meter
Longitude_Resolution: 27.5 Meter
Geographic_Coordinate_Units: Decimal degrees
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NASA/LARC/SD/ASDC > Atmospheric Science Data Center, Science Directorate, Langley Research Center, NASA
Contact_Person: ASDC USER SERVICES
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: NASA Langley Atmospheric Science Data Center
Address: User and Data Services
Address: NASA Langley Research Center
Address: Mail Stop 157D
City: Hampton
State_or_Province: VA
Postal_Code: 23681-2199
Country: USA
Contact_Voice_Telephone: 757-864-8656
Contact_Electronic_Mail_Address: support-asdc@earthdata.nasa.gov
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NASA/LARC/SD/LARC_DAAC > Langley Research Center Distributed Active Archive Center, Science Directorate, Langley Research Center, NASA
Contact_Person: ASDC USER SERVICES
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: NASA Langley Atmospheric Science Data Center
Address: User and Data Services
Address: NASA Langley Research Center
Address: Mail Stop 157D
City: Hampton
State_or_Province: VA
Postal_Code: 23681-2199
Country: USA
Contact_Voice_Telephone: 757-864-8656
Contact_Electronic_Mail_Address: support-asdc@earthdata.nasa.gov
Resource_Description: AIRMISR_HARVARD_2003
Resource_Description: AIRMISR_HARVARD_2003
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Not Available
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://eosweb.larc.nasa.gov/
Access_Instructions:
DATA CENTER URL
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://eosweb.larc.nasa.gov/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://eosweb.larc.nasa.gov/project/airmisr/airmi...
Access_Instructions:
Access AirMISR Data and Information
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://misr.jpl.nasa.gov/Mission/airMISR/
Access_Instructions:
AirMISR Mission page
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date: 20040719
Metadata_Review_Date: 20140407
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: ASDC USER SERVICES
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: NASA Langley Atmospheric Science Data Center
Address: User and Data Services
Address: NASA Langley Research Center
Address: Mail Stop 157D
City: Hampton
State_or_Province: VA
Postal_Code: 23681-2199
Country: USA
Contact_Voice_Telephone: 757-864-8656
Contact_Electronic_Mail_Address: support-asdc@earthdata.nasa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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