ABoVE: Corrected MODIS MAIAC Reflectance at Tower Sites, Alaska and Canada, 2000-2016
This dataset provides angular corrections of MODIS Multi-Angle Implementation of Atmospheric Correction algorithm (MAIAC) surface reflectances by two methods at each of 62 flux tower sites (1 km x 1 km area) across the ABoVE domain in Alaska and western Canada from 2000 to 2015/2016. The original MAIAC reflectance data were corrected to consistent view and illumination angles (0 degree view zenith angle and 45 degree of sun zenith angle) using two independent algorithms: the first based on the original BRDF (Bidirectional Reflectance Distribution Function) parameters provided by the MAIAC team, and the second based on a machine learning approach (random forests). The corrected data preserve the original MAIAC data's sub-daily temporal resolution and 1 km spatial resolution with seven land bands (bands 1-7) and five ocean bands (bands 8-12). The resulting tower site sub-daily timeseries of angular corrected surface reflectances are suitable for long-term studies on patterns, processes, and dynamics of surface phenomena.
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| Spatial Extent: | Bounding Rectangle: N: 71.32 S: 42.64 E: -74.04 W: -157.41 |
Data Format(s): | Distribution: Not provided |
| Temporal Extent: | Platform(s): | Environmental Modeling, Aqua, Terra | |
| Data Center(s): | ORNL_DAAC | Instrument(s): | Computer, MODIS |
| Version: | 1 | ||
- Other Citation Details: Yu, R., G. Hmimina, K.F. Huemmrich, D.P. Billesbach, A. Lyapustin, Y. Wang, and J.A. Gamon. 2019. ABoVE: Corrected MODIS MAIAC Reflectance at Tower Sites, Alaska and Canada, 2000-2016. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1700
- GENERAL DOCUMENTATION: https://daac.ornl.gov/ABOVE/guides/MODIS_MAIAC_Reflectance.html, ORNL DAAC Data Set Documentation
- GENERAL DOCUMENTATION: https://daac.ornl.gov/daacdata/above/MODIS_MAIAC_Reflectance/comp/MODIS_MAIAC_Reflectance.pdf, ABoVE: Angular Correction of MODIS MAIAC Surface Reflectance, AK and CA, 2000-2016: MODIS_MAIAC_Reflectance.pdf
Collection Information
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DOI
10.3334/ORNLDAAC/1700
https://doi.org
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Data Identification
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Processing Level
3
Variables mapped on uniform space-time grid scales with completeness and consistency
- Quality
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Collection Progress
Complete
Data Dates
| Creation | |
| Last Revision |
Related URLs
Acquisition Information
Projects
| Project Short Name | Campaigns | Project Dates |
|---|---|---|
| ABoVE | No campaigns listed. | No dates provided. |
Temporal Information
Spatial Information
| Coverage Type | Zone Identifier | Geometry | Granule Representation |
|---|---|---|---|
| HORIZONTAL | CARTESIAN | CARTESIAN |
Location Keywords
- CONTINENT
- NORTH AMERICA
- UNITED STATES OF AMERICA
- ALASKA
- CONTINENT
- NORTH AMERICA
- CANADA
Data Centers
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ORNL_DAAC
ARCHIVER-
ORNL DAAC User Services Office, P.O. Box 2008, MS 6407, Oak Ridge National Laboratory
Oak Ridge, Tennessee 37831-6407
(865) 241-3952
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Archive And Distribution Information
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Format: Not provided
Format Type: Native
Fees: 0