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Dataset

 

MODIS Surface Reflectance Product from the Aqua Satellite (MYD09)

Update Frequency: As Needed
Latest Data Update: 2014-08-19
Status: Ongoing
Online Status: ONLINE
Publication State: Published
Publication Date: 2014-08-05
Download Stats: last 12 months
Dataset Size: 33.59K Files | 10TB
Abstract

The MODIS Surface Reflectance Product from the Aqua satellite is a level 2 data product derived from 7 spectrum bands (bands 1-7 each centred at 648 nm, 858 nm, 470 nm, 555 nm, 1240 nm, 1640 nm, and 2130 nm, respectively) from the Level 1B product. The product estimates the surface spectral reflectance as it would have been measured at ground level in the absence of atmospheric scattering or absorption. Corrections to account the effect of atmospheric gases, aerosols and thin cirrus clouds are made by using level 1B, other level 2 and level 3 products, and if necessary also climatology. Both the MOD09 dataset from the Terra satellite and the MYD09 dataset from the Aqua satellite are produced using the same processing system.

Citable as:  National Aeronautics and Space Administration (2014): MODIS Surface Reflectance Product from the Aqua Satellite (MYD09). NERC Earth Observation Data Centre, date of citation. https://catalogue.ceda.ac.uk/uuid/29f8759618bc0cea2ca3fd46468b57e7/
Abbreviation: Not defined
Keywords: Not defined

Details

Previous Info:
No news update for this record
Previously used record identifiers:
http://badc.nerc.ac.uk/view/neodc.nerc.ac.uk__ATOM__ACTIVITY_efa034e2-1c79-11e4-8bcc-00163e251233
Access rules:
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence(s):
https://modaps.modaps.eosdis.nasa.gov/services/faq/LAADS_Data-Use_Citation_Policies.pdf
When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

The data were obtained by the MODIS Science Team, which were then downloaded and made available by the Quality Assurance for Essential Climate Variable (QA4ECV) Team to the NEODC for archiving after completeness checks had been carried out using MD5 checksums to ensure bitwise complete transfers.
File Format:
Data availability and file format

MODIS Surface Reflectance Product is available in HDF-EOS format, spanning from the start of the mission until present.

More Information (under review)


Introduction

The MODIS Surface Reflectance Product from the Aqua satellite is a level 2 data product derived from 7 spectrum bands (bands 1-7 each centred at 648 nm, 858 nm, 470 nm, 555 nm, 1240 nm, 1640 nm, and 2130 nm, respectively) from the Level 1B product. The product estimates the surface spectral reflectance as it would have been measured at ground level in the absence of atmospheric scattering or absorption. Corrections to account the effect of atmospheric gases, aerosols and thin cirrus clouds are made by using level 1B, other level 2 and level 3 products, and if necessary also climatology. Both the MOD09 dataset from the Terra satellite and the MYD09 dataset from the Aqua satellite are produced using the same processing system.


Restricted Data Access

The MODIS data stored at the NEODC are available to registered NEODC users. To obtain access to the data please Register as a NEODC user. If you already are a NEODC registered user, skip this step. If you have forgotten your NEODC user ID and/or password, please contact the NEODC helpdesk at neodc@rl.ac.uk.


Data availability and file format

MODIS Surface Reflectance Product is available in HDF-EOS format, spanning from the start of the mission until present.


Documentation and Links to further information and references

For further information about the atmospheric correction, please consult the following paper: Vermote, E.F., El Saleous, N., Justice, C.O., Kaufman, Y.J., Privette, J.L., Remer, L., Roger, J.C. and Tanré, D. (1997). Atmospheric correction of visible to middle-infrared EOS-MODIS data over land surfaces: Background, operational algorithm and validation. Journal of Geophysical Research 102: doi: 10.1029/97JD00201 (Link)


Who to contact

For assistance accessing this dataset please contact the NEODC helpdesk


Lineage
The data were obtained by the MODIS Science Team, which were then downloaded and made available by the Quality Assurance for Essential Climate Variable (QA4ECV) Team to the NEODC for archiving after completeness checks had been carried out using MD5 checksums to ensure bitwise complete transfers.

Related Documents

 NASA Data Product Description (for MOD09, but applicable to MYD09)
 Atmospheric Correction used in MYD09 (Vermote et al., 1997)
 NASA Product Summary (for MOD09, but applicable to MYD09)
 NASA MOD09 Non-technical Description

Process overview

This dataset was generated by a combination of instruments deployed on platforms and computations as detailed below.

Mobile platform operations

Mobile Platform Operation 1 Terra Satellite orbit details
Mobile Platform Operation 2 Aqua Satellite orbit details

Computation Element: 1

Title Deployed on Aqua Satellite, part of the Earth Observation System Afternoon Constellation (EOS-PM)
Abstract Deployed on Aqua Satellite, part of the Earth Observation System Afternoon Constellation (EOS-PM). Aqua, launched on 4th April 2002, is a polar-orbiting satellite within the Afternoon Constellation (A-Train) that have equator crossings around 13:30 and 01:30 under NASA's Earth Obseration System (EOS). The satellite carries Atmospheric Infrared Sounder (AIRS), Advanced Microwave Sounding Unit (AMSU-A), Humidity Sounder for Brazil (HSB), Advanced Microwave Scanning Radiometer for EOS (AMSR-E), Moderate-Resolution Imaging Spectroradiometer (MODIS) and Clouds and the Earth's Radiant Energy System (CERES), and these collect data on the Earth's atmospheric conditions, snow and ice, sea surface temperature and ocean productivity, and soil moisture. Aqua is the only satellite in the Aqua mission, and it is a part of the Afternoon Constellation, a group of polar-orbiting satellites sharing the same orbit that all have equator crossings around 13:30 and 01:30. The Satellite was launched on 4th April 2002. The Atmospheric Infrared Sounder (AIRS)</li> The Advanced Microwave Sounding Unit (AMSU-A)</li> The Humidity Sounder for Brazil (HSB)</li> The Advanced Microwave Scanning Radiometer for EOS (AMSR-E)</li> The Moderate-Resolution Imaging Spectroradiometer (MODIS)</li> The Clouds and the Earth's Radiant Energy System (CERES)</li> These instruments collects data on atmospheric conditions, snow and ice, sea surface temperature and ocean productivity and soil moisture.
Input Description None
Output Description None
Software Reference None
Output Description

None
  • units: unitless
  • var_id: 1km Atmospheric Optical Depth Band 1
  • long_name: 1km Atmospheric Optical Depth Band 1
  • units: unitless
  • var_id: 1km Atmospheric Optical Depth Band 3
  • long_name: 1km Atmospheric Optical Depth Band 3
  • units: unitless
  • var_id: 1km Atmospheric Optical Depth Band 8
  • long_name: 1km Atmospheric Optical Depth Band 8
  • var_id: 1km Atmospheric Optical Depth Band CM
  • long_name: 1km Atmospheric Optical Depth Band CM
  • units: bitmap
  • units: bitmap
  • var_id: 1km Atmospheric Optical Depth Band QA
  • long_name: 1km Atmospheric Optical Depth Band QA
  • units: unitless
  • var_id: 1km Atmospheric Optical Depth Model
  • long_name: 1km Atmospheric Optical Depth Model
  • units: unitless
  • var_id: 1km Band 3 Path Radiance
  • long_name: 1km Band 3 Path Radiance
  • units: bitmap
  • var_id: 1km Reflectance Band Quality
  • long_name: 1km Reflectance Band Quality
  • units: bitmap
  • var_id: 1km Reflectance Data State QA
  • long_name: 1km Reflectance Data State QA
  • units: reflectance
  • var_id: 1km Surface Reflectance Band 1
  • long_name: 1km Surface Reflectance Band 1
  • units: reflectance
  • var_id: 1km Surface Reflectance Band 10
  • long_name: 1km Surface Reflectance Band 10
  • units: reflectance
  • var_id: 1km Surface Reflectance Band 11
  • long_name: 1km Surface Reflectance Band 11
  • units: reflectance
  • var_id: 1km Surface Reflectance Band 12
  • long_name: 1km Surface Reflectance Band 12
  • units: reflectance
  • var_id: 1km Surface Reflectance Band 13
  • long_name: 1km Surface Reflectance Band 13
  • units: reflectance
  • var_id: 1km Surface Reflectance Band 14
  • long_name: 1km Surface Reflectance Band 14
  • units: reflectance
  • var_id: 1km Surface Reflectance Band 15
  • long_name: 1km Surface Reflectance Band 15
  • units: reflectance
  • var_id: 1km Surface Reflectance Band 16
  • long_name: 1km Surface Reflectance Band 16
  • units: reflectance
  • var_id: 1km Surface Reflectance Band 2
  • long_name: 1km Surface Reflectance Band 2
  • units: reflectance
  • var_id: 1km Surface Reflectance Band 26
  • long_name: 1km Surface Reflectance Band 26
  • units: reflectance
  • var_id: 1km Surface Reflectance Band 3
  • long_name: 1km Surface Reflectance Band 3
  • units: reflectance
  • var_id: 1km Surface Reflectance Band 4
  • long_name: 1km Surface Reflectance Band 4
  • units: reflectance
  • var_id: 1km Surface Reflectance Band 5
  • long_name: 1km Surface Reflectance Band 5
  • units: reflectance
  • var_id: 1km Surface Reflectance Band 6
  • long_name: 1km Surface Reflectance Band 6
  • units: reflectance
  • var_id: 1km Surface Reflectance Band 7
  • long_name: 1km Surface Reflectance Band 7
  • units: reflectance
  • var_id: 1km Surface Reflectance Band 8
  • long_name: 1km Surface Reflectance Band 8
  • units: reflectance
  • var_id: 1km Surface Reflectance Band 9
  • long_name: 1km Surface Reflectance Band 9
  • var_id: 1km water_vapor
  • long_name: 1km water_vapor
  • units: g/cm^2
  • units: bitmap
  • var_id: 250m Reflectance Band Quality
  • long_name: 250m Reflectance Band Quality
  • units: reflectance
  • var_id: 250m Surface Reflectance Band 1
  • long_name: 250m Surface Reflectance Band 1
  • units: reflectance
  • var_id: 250m Surface Reflectance Band 2
  • long_name: 250m Surface Reflectance Band 2
  • units: bitmap
  • var_id: 500m Reflectance Band Quality
  • long_name: 500m Reflectance Band Quality
  • units: reflectance
  • var_id: 500m Surface Reflectance Band 1
  • long_name: 500m Surface Reflectance Band 1
  • units: reflectance
  • var_id: 500m Surface Reflectance Band 2
  • long_name: 500m Surface Reflectance Band 2
  • units: reflectance
  • var_id: 500m Surface Reflectance Band 3
  • long_name: 500m Surface Reflectance Band 3
  • units: reflectance
  • var_id: 500m Surface Reflectance Band 4
  • long_name: 500m Surface Reflectance Band 4
  • units: reflectance
  • var_id: 500m Surface Reflectance Band 5
  • long_name: 500m Surface Reflectance Band 5
  • units: reflectance
  • var_id: 500m Surface Reflectance Band 6
  • long_name: 500m Surface Reflectance Band 6
  • units: reflectance
  • var_id: 500m Surface Reflectance Band 7
  • long_name: 500m Surface Reflectance Band 7
  • units: degrees K
  • var_id: BAND20
  • long_name: BAND20
  • units: reflectance
  • var_id: BAND20ALBEDO
  • long_name: BAND20ALBEDO
  • units: degrees K
  • var_id: BAND31
  • long_name: BAND31
  • units: degrees K
  • var_id: BAND32
  • long_name: BAND32
  • units: degrees
  • long_name: Latitude
  • var_id: Latitude
  • units: degrees
  • long_name: Longitude
  • var_id: Longitude

Co-ordinate Variables

Coverage
Temporal Range
Start time:
2002-07-03T23:00:00
End time:
Ongoing
Geographic Extent

 
90.0000°
  
-180.0000°
  
180.0000°
 
-90.0000°
  
Related parties
Authors (1)
Publishers (1)
Principal Investigators (1)