SMEX02 Watershed Vegetation Sampling Data, Walnut Creek, Iowa  View Catalog Page Entry ID
NSIDC-0187
Summary
This data set contains the vegetation parameters stand density, plant height, phenological stage, ground cover, green and dry biomass, row spacing, stem and leaf water content, and leaf area index (LAI) as part of the Soil Moisture Experiment 2002 (SMEX02). The SMEX studies are designed to evaluate, among other things, the accuracy of AMSR-E soil moisture data. This study was conducted during June and July 2002 in the SMEX02 Iowa watershed area in Iowa, USA. LAI was measured by a plant canopy analyzer. The other parameters were measured manually. Digital photographs were taken of each location to record crop sampling location conditions.
LAI is the ratio of the total area of all leaves on a plant to the area of ground covered by the plant. Stand density is the number of plants in a meter length of a crop row. Plant height and row spacing data are given in meters.
Data are provided in ASCII text files and as a Microsoft Excel file, and are available via FTP.
These data were collected as part of a validation study for the Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E). AMSR-E is a mission instrument launched aboard NASA's Aqua Satellite on 04 May 2002. AMSR-E validation studies linked to SMEX are designed to evaluate the accuracy of AMSR-E soil moisture data. Specific validation objectives include assessing and refining soil moisture algorithm performance; verifying soil moisture estimation accuracy; investigating the effects of vegetation, surface temperature, topography, and soil texture on soil moisture accuracy; and determining the regions that are useful for AMSR-E soil moisture measurements.
Geographic Coverage
Spatial Coordinates:
N: 42.7°
S: 41.7°
E: -93.2°
W: -93.8°
|
|
Data Set Citation
Dataset Creator: Anderson, Martha
Dataset Title: SMEX02 Watershed Vegetation Sampling Data, Walnut Creek, Iowa
Dataset Release Date: 2003-09-29
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/nsidc-0187.html
Temporal Coverage
Start Date: 2002-06-15
Stop Date: 2002-07-09
Location Keywords
- CONTINENT NORTH AMERICA UNITED STATES OF AMERICA
Science Keywords
- Agriculture Agricultural Plant Science
- Biosphere Vegetation
- Biosphere Vegetation Biomass
- Biosphere Vegetation Leaf Characteristics
- Biosphere Vegetation Plant Characteristics
- Biosphere Vegetation Vegetation Cover
- Biosphere Vegetation Vegetation Index
Ancillary Keywords
- Biomass
- Field Investigations
- Leaf Area Index
- NSIDC
- NSIDC DAAC
- NSIDC > National Snow and Ice Data Center
- Plant Biomass
- Plant Phenology
- Plant Species Cover
- SMEX
- Vegetation
- Vegetation Cover
- vegetation distribution
- Vegetation Height
- Vegetation Species
Platform
Instrument
- LICOR PLANT CANOPY ANALYZER
Project
- ISMEX Iowa Soil Moisture Experiment
- SMEX02 Soil Moisture Experiments in 2002
Data Set Progress
complete
Originating Center
NSIDC
Data Center
NASA DAAC at the National Snow and Ice Data Center
Data Center URL: http://nsidc.org/daac/index.html
Data Center Personnel
Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
National Snow and Ice Data Center
Data Center URL: http://nsidc.org
Data Center Personnel
Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
Personnel
Martha Anderson
Role: INVESTIGATOR
Email: mcanders@facstaff.wisc.edu
Contact Address:
- University of Wisconsin
- 1525 Observatory Dr.
City: Madison
Province or State: WI
Postal Code: 53705
Country: USA
NSIDC User Services
Role: TECHNICAL CONTACT
Phone: 1 303 492-6199 x
Fax: 1 303 492-2468 x
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
Related URL
VIEW PROJECT HOME PAGE
NSIDC DAAC AMSR-E Validation Data: Soil Moisture Data Web site
VIEW PROJECT HOME PAGE
Soil Moisture Experiments in 2002 Web site
VIEW PROJECT HOME PAGE
Soil Moisture Experiment (SMEX) Web site.
Metadata Name and Version
Metadata Name: CEOS IDN DIF
Metadata Version: 9.7
Creation and Review Dates
DIF Creation Date: 2003-09-29
Last DIF Revision Date: 2012-06-25
| 
Home | Contact Us
