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JECAM | Joint Experiment for Crop Assessment and Monitoring

China - Heilongjiang

Project Overview

Crop identification and Crop Area Estimation

Crop Condition/Stress

Estimation of Biophysical Variables

Yield Prediction and Forecasting

Crop Residue Cover and Tillage Mapping

Phonological Events

The mapping resolution is 30 metres.

Timeliness (with regards to growing season): in 1 – 2 months.

The current project phase is research and operational pilot.


Project Reports

2014 Site Progress Report

Publications:

Dong Taifeng, Wu Bingfang, Meng Jihua, Li Qiangzi, Zhang Miao. Study of a Vegetation Index Based on HJ CCD data's top-of-atmosphere reflectance and FPAR Inversion. Oral presentation in the 35th International Symposium on Remote Sensing of Environment (ISRSE35), April 2013, China, Beijing.

Cao Xin, Li Qiangzi, Zheng Xinqi. Extract effect of segmentation scale on orient-based crop identification using HJ CCD data in Northeast China. Poster presentation in the 35th International Symposium on Remote Sensing of Environment (ISRSE35), April 2013, China, Beijing.

Meng Jihua, Dong Taifeng, Zhang Miao, You Xingzhi, Wu Bingfang, 2013. Predicting Soybean Mature Date with Satellite Data. Oral presentation in the 9th European Conference on Precision Agriculture 2013 (ECPA2013, Lleida, Catalonia, Spain).


Implementation Plans

The mapping resolution is 30 metres.

Timeliness (with regards to growing season): in 1 – 2 months.

The current project phase is research and operational pilot.

Plans for the Next Growing Season:

We have some additional measurements compared with that in 2012, including land surface temperature, soil water content, leaf water content and nitrogen content of crop canopy and etc. In 2014 and the future, we will measure same variables same as that in 2013.

In 2013, we acquired some high resolution optical images, such as Rapideye and Spot-4 images over the same study site through ‘TAKE-5’ plan. We anticipate ordering some Rapideye, UK-DMC2 and other high resolution images in 2014 and the future continuously.


Site Description

Locations

Heilongjiang
Site Extent   Centroid: 48.168, 127.042
Top left: 48.286, 126.831 Bottom Right: 48.046, 127.239

Topography

Soils

Drainage class/irrigation

Crop calendar

Field size

Climate and weather

Photographs:


Specific Project Objectives & Deliverables

Estimating Crop Acreage: Crop Identification

Crop Growing Conditions Over the Growing Season: Crop biomass, soil moisture and temperature, etc

Estimation of Biophysical Variables: biomass, fAPAR, LAI

Crop yield estimation

Phenological Events

Integration of the EO-Derived Information Into Crop/Agro-Met Models

Crop Residue Monitoring


In Situ Observations

  1. Parameter: soil nutrition status
    Data Collection Protocol:

    GPS

    Frequency: once each crop year, before the seeding
  2. Parameter: crop residue cover
    Data Collection Protocol:

    GPS

    Frequency: one each crop year, right after the harvest of crops
  3. Parameter: FPAR
    Data Collection Protocol:

    GPS

    Frequency: about twice each crop year
  4. Parameter: LAI
    Data Collection Protocol:

    GPS

    Frequency: twice each crop year
  5. Parameter: crop type
    Data Collection Protocol:

    GPS

    Frequency: once each season

EO Data Requirements

Approximate Start Date of Acquisition: April 1 (min), March 15 (preferred)
Approximate End Date of Acquisition: Sep 10 (min), Sep 20 (preferred)
Spatial Resolution: 30 (min), 10 (preferred)
Temporal Frequency: 30d (min), 15d (preferred)
Latency of Data Delivery: weekly
Wavelengths Required: B,G,R,NIR (min), B,G,R,NIR, Red Edge band (preferred)
Across Swath: 70km (min), 100km (preferred)
Along Track: 70km (min), 100km (preferred)

SAR Data Requirements

Approximate Start Date of Acquisition: April 1 (min), March 15 (preferred)
Approximate End Date of Acquisition: Sep 10 (min), Sep 20 (preferred)
Spatial Resolution: 30 m (min), 10 m (preferred)
Temporal Frequency: 5 times over season
Latency of Data Delivery: weekly
Wavelengths Required: X, C and L
Polarization Dual (VV,VH) (min), Polarimetric (preferred)
Incidence Angle Restrictions: No restriction
Across Track: 70km (min), 100km (preferred)
Along Track: 70km (min), 100km (preferred)

Locations

Heilongjiang

Centroid
Latitude: 48.168
Longitude: 127.042

Site Extent
Top left
Latitude: 48.286
Longitude: 127.042
Bottom Right
Latitude: 48.046
Longitude: 127.239


Optical Sensors

RapidEye
Imaging Mode: Multi-spectral
Spatial Resolution: 6.5 m
Acquisition Frequency:
Pre-Processing Level:
Application:

HJ-1 CCD
Imaging Mode: Pushbroom
Spatial Resolution: 30 m
Acquisition Frequency: 4 days
Pre-Processing Level: 0
Application:

CBERS 01/02-CCD
Imaging Mode: Pushbroom
Spatial Resolution: 19.5 m
Acquisition Frequency: Monthly
Pre-Processing Level: 0
Application:

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)