Aerosol Research Branch (ARB) 48 inch Lidar (ARB_48_IN_LIDAR)

Federal Geographic Data Committee (FGDC) Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Reference_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Unknown

Publication_Date: Unknown

Title: Aerosol Research Branch (ARB) 48 inch Lidar (ARB_48_IN_LIDAR)

Description:

Abstract:

The ARB_48_IN_LIDAR data set contains data collected from a 48-inch lidar system located at NASA Langley Research Center. Each granule consists of one year of data. Data are available from 1982 through the present and are continuously being collected. The days of data are different in each granule. Each measurement consists of four parameters: stratospheric integrated backscatter over altitude, altitude levels, scattering ratio at each altitude level, and aerosol backscattering coefficient at each altitude level. An image has been produced to represent the data collected for each granule. The Aerosol Research Branch (ARB) Light Detection and Ranging (LIDAR) project has been taking ground based LIDAR measurements from Langley Research Center in Hampton, Virginia since May 1974. These LIDAR measurements provide high resolution vertical profiles of the upper tropospheric and stratospheric aerosols. The LIDAR system has evolved over the years and provides a valuable long-term history of the middle-latitude stratospheric aerosol. The measurements for ARB were made using a LIDAR system. This system uses a ruby laser that emits one joule per pulse with a repeat rate of 0.15 hertz (Hz) at a wavelength of 0.6943 micrometers. This system also uses a 48-inch cassegrainian configured telescope mounted on a movable platform. The transmitter laser beam has a divergence of about 1.0 mrad, and the maximum receiver field of view is 4.0 mrad. The LIDAR has a signal bandwidth of 1 MHz, and this is equal to a 150 meter vertical resolution. Three photomultiplier tubes are used to enhance the dynamic range. These tubes are electronically switched on at specific times after the laser has been fired. The photomultiplier tube output signals are processed by 12-bit Computer Automated Measurement and Control (CAMAC) based digitizers and acquired by a personal computer. The data are archived on optical discs.

Purpose:

Not Available

Supplemental_Information:

REFERENCE: Fuller, W. H., Osborn, M. T., and Hunt, W. H. 1988 48-Inch Lidar Aerosol Measurements Taken at the Langley Research Center - May 1974 to December 1987 NASA RP-1209

Supplemental_Information:

REFERENCE: Osborn, M. T., R. J. DeCoursey, C. R., Trepte, D. M. Winker, and D. C. Woods May 1, 1995 Evolution of the Pinatubo Volcanic Cloud Over Hampton, Virginia Geophys. Res. Lett. 22 9 1101-1104

Supplemental_Information:

REFERENCE: Russell, Philip B., Swissler, Thomas J., and McCormick, M. Patrick Nov. 15, 1979 Methodology for Error Analysis and Simulation of Lidar Aerosol Measurements Appl. Opt. 18 22 3783-3797

Supplemental_Information:

REFERENCE: Woods, D. C., M. T. Osborn, D., M. Winker, R. J. DeCoursey, and O. Youngbluth 1994 48-inch Lidar Aerosol Measurements Taken at the Langley Research Center - July 1991 to December 1992 NASA RP-1334

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19820614

Ending_Date: 19970905

Currentness_Reference:Unknown

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Description_of_Geographic_Extent:

Bounding_Coordinates:

West_Bounding_Coordinate: -76.0

East_Bounding_Coordinate: -76.0

North_Bounding_Coordinate: 37.0

South_Bounding_Coordinate: 37.0

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 > ATMOSPHERE > ALTITUDE > GEOPOTENTIAL HEIGHT

Theme_Keyword: GROUND STATIONS

Theme_Keyword: LIDAR > LIGHT DETECTION AND RANGING

Theme_Keyword: ARB > AEROSOL RESEARCH BRANCH LIGHT DETECTION AND RANGING PROJECT

Theme_Keyword: EOSDIS > EARTH OBSERVING SYSTEM DATA INFORMATION SYSTEM

Theme_Keyword: ESIP > EARTH SCIENCE INFORMATION PARTNERS PROGRAM

Theme_Keyword: 48-inch Lidar

Theme_Keyword: Aerosol

Theme_Keyword: Aerosol Backscattering Coeff.

Theme_Keyword: Eosdis

Theme_Keyword: Integrated Backscatter

Theme_Keyword: Lidar

Theme_Keyword: Scattering Ratio

Theme_Keyword: Stratospheric Aerosol

Theme_Keyword: Upper Tropospheric Aerosol

Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Place:

Place_Keyword_Thesaurus: GCMD

Place_Keyword: CONTINENT > NORTH AMERICA

Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CONNECTICUT

Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MAINE

Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MARYLAND

Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MASSACHUSETTS

Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW YORK

Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NORTH CAROLINA

Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > PENNSYLVANIA

Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > SOUTH CAROLINA

Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > VIRGINIA

Access_Constraints: Not Available

Use_Constraints:

Not Available

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: MARY T. OSBORN

Contact_Position: TECHNICAL CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Science Directorate

Address: NASA Langley Research Center

City: Hampton

State_or_Province: VA

Postal_Code: 23681-2199

Country: USA

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

Spatial_Reference_Information:

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: ARB_48_IN_LIDAR

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:

http://eosweb.larc.nasa.gov/cgi-bin/searchTool.cgi...

Access_Instructions:

Access this data set from the ASDC Web Ordering Tool

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://eosweb.larc.nasa.gov/project/48arb/48arb_t...

Access_Instructions:

Table of ARB data products and additional product information.

Fees: Not Available

Metadata_Reference_Information:

Metadata_Date:

Metadata_Review_Date: 20130529

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