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JECAM | Joint Experiment for Crop Assessment and Monitoring

USA - Iowa

Project Overview

Project Objectives:

The original project objectives for our site have not changed.

Crop identification and Crop Area Estimation:

Crop Condition/Stress:

Soil Moisture:

Crop Residue, Tillage and Crop Cover Mapping:


Project Reports

The majority of the work in this domain is research in progress with no substantial conclusions yet. Data collection and infrastructure improvement are the primary tasks.

2017 Site Progress Report

2015 Site Progress Report

2014 Site Progress Report

Publications

  1. Chan, S. K., Bindlish, R., O’Neill, P., Njoku, E., Jackson, T., Colliander, A., … Kerr, Y. (2016). Assessment of the SMAP Passive Soil Moisture Product. IEEE Transactions on Geoscience and Remote Sensing, 54(5).
  2. Rondinelli, W. J., Hornbuckle, B., Patton, J. C., Cosh, M.H., Walker, V. A., Carr, B. D., Logsdon, S. D. 2014. Different rates of soil drying after rainfall are observed by the SMOS satellite and the South Fork In Situ Soil Moisture Network, Journal of Hydrometeorology, 16, 2, 889-903.

  3. Coopersmith, E., Cosh, M.H., Petersen, Walter, Prueger, J.H., Niemeier, James J. 2015. Soil moisture model calibration and validation: An ARS watershed on the South Fork Iowa River. Journal of Hydrometeorology, 16, 3, 1087-1101.

  4. Rondinelli, W. J., Hornbuckle, B., Patton, J. C., Cosh, M.H., Walker, V. A., Carr, B. D., Logsdon, S. D. 2014. Different rates of soil drying after rainfall are observed by the SMOS satellite and the South Fork In Situ Soil Moisture Network, Journal of Hydrometeorology, in press.

  5. Coopersmith, E., Cosh, M.H., Petersen, Walter, Prueger, J.H., Niemeier, James J. 2014. Multi-Scale Soil Moisture Model Calibration and Validation: An ARS Watershed On the South Fork of the Iowa River Journal of Hydrometeorology, in press.


Implementation Plans

In situ Data:

There are currently 20 in situ soil moisture stations collecting soil moisture, soil temperature and precipitation data in the South Fork Region.  In addition, during the Spring and Fall, in situ crop residue studies were conducted to estimate residue amounts via field measures and roadside surveys. During the summer of 2016, a field experiment was conducted in conjunction with NASA called the Soil Moisture Active Passive Validation Experiment (SMAPVEX16).  

 

Plans for Next Growing Season:

We will continue to measure crop residue and will be performing soil moisture validation on the network.  


Site Description

Locations

USA - Iowa
Site Extent   Centroid: 42.25, -93.5
Top left: 42.6, -93.8 Bottom Right: 41.9, -93.2

Location: South Fork, Iowa (Hardin and Hamilton Counties, Iowa, USA).

Topography: Flat

Soils: Clay Loam

Drainage class/irrigation: Poorly Drained, Installed Drainage Tiles, limited irrigation.

Crop calendar: April/May Planting, September/October Harvest

Field size : 800 m by 800 m

Climate and weather: Temperate/Humid

Agricultural methods used: Corn and Soybean, no-till and tilled.

Photograph(s):


Student collects soil moisture data during SMAPVEX16 in South Fork IA.

 


Precipitation/soil moisture station at South Fork, IA

 


Field Team for IOP2 of SMAPVEX16

 


Specific Project Objectives & Deliverables

The majority of the work in this domain is research in progress with no substantial conclusions yet.  Data collection and infrastructure improvement are the primary tasks.


In Situ Observations

  1. Parameter: Crop residue cover
    Data Collection Protocol:

    Line-point transect method in selected fields

    Frequency: Annually after planting
  2. Parameter: Net Radiation
    Data Collection Protocol:

    Net radiometers at selected sites

    Frequency: May-Sept, 2009-11 at 30 minute intervals
  3. Parameter: Precipitation
    Data Collection Protocol:

    Tipping bucket rain gauges at selected sites

    Frequency: 5/1/2009-present at Hourly intervals
  4. Parameter: Micrometeorological Data (Air Temp, Wind, Vapor Pressure, etc.)
    Data Collection Protocol:

    Campbell Scientific Instrumentation

    Frequency: 5/1/2009 - present at 30 minute intervals
  5. Parameter: Soil Moisture at 5 cm and 50 cm
    Data Collection Protocol:

    Hydra Probes

    Frequency: 5/1/2009 - present at Hourly intervals
  6. Parameter: Water/Energy/CO2 fluxes
    Data Collection Protocol:

    Eddy Covariance Fluxes

    Frequency: May-Sept, 2009-11 at 30 minute intervals
  7. Parameter: soil moisture, soil temperature and precipitation data
    Data Collection Protocol:

    20 in situ soil moisture stations

    Frequency:

EO Data Requirements

Approximate Start Date of Acquisition: May 1st (min), March 1st (preferred)
Approximate End Date of Acquisition: November 15 (min), December 1 (preferred), Extended season for crop residue research
Spatial Resolution: 250 m (min), 30 m (preferred)
Temporal Frequency: 2 weeks (min), 1 week (preferred)
Latency of Data Delivery: 1 month (min), 2 weeks (preferred)
Wavelengths Required: VIS/NIR/SWIR (min), VIS/NIR/SWIR/TIR (preferred)
Across Swath: 75 km (min), 75 km (preferred)
Along Track: 100 km (min), 100 km (preferred)

SAR Data Requirements

Approximate Start Date of Acquisition: April and May, or all that are available for Aqua and SMOS
Approximate End Date of Acquisition: October and November, or all that are available for Aqua and SMOS
Spatial Resolution: 8 m Radarsat-2, 43-50 km Aqua and SMOS
Temporal Frequency: 4 Day, All that are available (preferred)
Latency of Data Delivery: 1 month (min), 2 weeks (preferred)
Wavelengths Required:
Polarization HH and VV
Incidence Angle Restrictions: Fine (preferred)
Across Track:
Along Track:

Locations

USA - Iowa

Centroid
Latitude: 42.25
Longitude: -93.5

Site Extent
Top left
Latitude: 42.6
Longitude: -93.5
Bottom Right
Latitude: 41.9
Longitude: -93.2


Optical Sensors

JECAM | Joint Experiment for Crop Assessment and Monitoring | Group on Earth Observation

©2013 Joint Experiment for Crop Assessment and Monitoring © HER MAJESTY THE QUEEN IN RIGHT OF CANADA SA MAJESTE LA REINE DU CHEF DU CANADA (2012)