Search Help
Did you find what you were looking for? Yes No

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Edition: 5.1
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name:
Issue_Identification:
Publication_Information:
Publication_Place:
Publisher:
Other_Citation_Details:
Online_Linkage:
Description:
Abstract:
MODIS was launched aboard the Terra satellite on December 18, 1999 (10:30 am equator crossing time) as part of NASA's Earth Observing System (EOS) mission. MODIS with its 2330 km viewing swath width provides almost daily global coverage. It acquires data in 36 high spectral resolution bands between 0.415 to 14.235 micron with spatial resolutions of 250m(2 bands), 500m(5 bands),and 1000m (29 bands). MODIS sensor counts, calibrated radiances, geolocation products and all derived geophysical atmospheric and ocean products are archived at NASA Goddard DAAC and has been made available to public since April 2000. The MODIS level-2 atmospheric aerosol product provides retrieved ambient aerosol optical properties (e.g., optical thickness and size distribution), mass concentration, look-up table derived reflected and transmitted fluxes, as well as quality assurance and other ancillary parameters, globally over ocean and near globally over land. The shortname for this level-2 MODIS aerosol product is MOD04_L2 and the principal investigators for this product are MODIS scientists: Dr. Yoram Kaufman for aerosol retrieval over land, and Dr. Didier Tanre (didier.tanre@univ-lille1.fr) for aerosol retrieval over ocean. The MODIS aerosol product (MOD04_L2) contains global data that has a spatial resolution of 10-km (at nadir). Each MOD04_L2 product file covers a five-minute time interval. The output grid is 135 pixels in width by 203 pixels in length. Every tenth file has an output grid size of 135 by 204 pixels. MOD04_L2 product files are stored in Hierarchical Data Format (HDF-EOS). The file consists of 53 pixel level gridded aerosol parameters. These pixel level gridded aerosol parameters are stored as Scientific Data Sets(SDS) within the file. Each file is roughly 10.46 MB in size, and the total data volume is approximately 1.44 GB/day. MODIS Data Category & Parameters Spatial & Temporal Resolution: latitude,longitude scan start time Solar and Sensor Viewing Geometry: solar zenith angle, solar azimuth angle sensor zenith angle, sensor azimuth angle Aerosol Parameters for Land & Ocean (Combined) aerosol optical depth (0.55 micron) over land and ocean scattering angle Aerosol Parameters from Ocean Retrieval Algorithm (best/average retrieval) Aerosol Particle Properties: effective optical depth at 7 bands (0.47,0.55,0.66,0.87,1.24,1.64,2.13 micron) effective radius (based on 0.55 micron) optical depth for small & large particles ratio of small mode optical depth relative to total for 0.55 micron mass concentration & cloud condensation nuclei (based on 0.55 micron) Angstrom exponents 1 (based on 0.55 and 0.865 micron) Angstrom exponent 2 (based on 0.865 and 2.13 micron) asymmetry factor & back scattering ratio at 7 bands solution indices for small & large modes Aerosol Parameters from Land Retrieval Algorithm: aerosol type, continental optical depth corrected optical depth, mass concentration; Angstrom exponent and dust weighting factor Aerosol Derived Radiation Parameters from both Algorithms (Land & Ocean): reflected flux, transmitted flux mean reflectance & uncertainty Quality Assurance & Statistical Parameters from both Algorithms(land & Ocean) : quality assurance flag, cloud mask, cloud fraction, number of pixels used, least square error These aerosol parameters will be used to study aerosol climatology, sources and sinks of specific aerosol types (e.g. sulfates and biomass burning aerosol), interaction of aerosols with clouds, and atmospheric corrections of remotely sensed surface reflectance over the land. This product will also be used to monitor aerosol mass concentration, aerosol optical properties, and radiative forcing on a global scale. See the MODIS Science Team homepage for more data set information: http://modis.gsfc.nasa.gov/data/dataprod/ or visit the MODIS Atmosphere Team homepage: http://modis-atmos.gsfc.nasa.gov/MOD04_L2/ Science Research
Purpose:
Not Available
Supplemental_Information:
Not Available
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19991218
Ending_Date: Unknown
Currentness_Reference:Unknown
Status:
Progress: In Work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -180.0
East_Bounding_Coordinate: 180.0
North_Bounding_Coordinate: 90.0
South_Bounding_Coordinate: -90.0
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: ISO TOPIC CATEGORY
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL BACKSCATTER
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL EXTINCTION
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL OPTICAL DEPTH/THICKNESS
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL PARTICLE PROPERTIES
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL RADIANCE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > CARBONACEOUS AEROSOLS
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > CLOUD CONDENSATION NUCLEI
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > DUST/ASH/SMOKE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > NITRATE PARTICLES
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > ORGANIC PARTICLES
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > PARTICULATE MATTER
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > SULFATE PARTICLES
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > OPTICAL DEPTH/THICKNESS
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > RADIATIVE FLUX
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > REFLECTANCE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL OPTICAL DEPTH/THICKNESS > ANGSTROM EXPONENT
Theme_Keyword: TERRA > EARTH OBSERVING SYSTEM, TERRA (AM-1)
Theme_Keyword: MODIS > MODERATE-RESOLUTION IMAGING SPECTRORADIOMETER
Theme_Keyword: EOSDIS > EARTH OBSERVING SYSTEM DATA INFORMATION SYSTEM
Theme_Keyword: ESIP > EARTH SCIENCE INFORMATION PARTNERS PROGRAM
Theme_Keyword: TERRA > EARTH OBSERVING SYSTEM (EOS), TERRA
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Theme_Keyword: ENVIRONMENT
Theme_Keyword: HEALTH
Temporal:
Temporal_Keyword_Thesaurus: GCMD
Temporal_Keyword: 5 Minutes
Access_Constraints: Not Available
Use_Constraints:
None
Back to Top
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
See http://modaps.nascom.nasa.gov/services/qa/
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
Back to Top
Spatial_Reference_Information:
Back to Top
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NASA/GSFC/SED/ESD/HBSL/BISB/LAADS > L1 and Atmosphere Archive and Distribution System,Biospheric Information Systems Branch, Hydrospheric and Biospheric Sciences Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA
Contact_Person:
Contact_Position: DATA CENTER CONTACT
Resource_Description: MOD04_L2
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://ladsweb.nascom.nasa.gov/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://modaps.nascom.nasa.gov/services/about/produ...
Access_Instructions:
Overview of MODIS
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://ladsweb.nascom.nasa.gov/data/search.html
Access_Instructions:
Search and order products from LAADS website.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
ftp://ladsweb.nascom.nasa.gov/allData/51/MOD04_L2/...
Access_Instructions:
Direct access to the ftp site and directory hosting the MOD04_L2 5.1 data set.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://modis.gsfc.nasa.gov/sci_team/
Access_Instructions:
MODIS Science Team
Fees: Not Available
Back to Top
Metadata_Reference_Information:
Metadata_Date: 20111122
Metadata_Review_Date: 20160302
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GCMD User Support Office
Contact_Organization: NASA Global Change Master Directory
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Not Available
City: Lanham
State_or_Province: MD
Postal_Code: 20706
Country: USA
Contact_Voice_Telephone: Not Available
Contact_Electronic_Mail_Address: gcmduso@gcmd.gsfc.nasa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Back to Top


Link to Web Site