Assessing the Performance of MODIS NDVI and EVI for Seasonal Crop Yield Forecasting at the Ecodistrict Scale
Article
Article Title | Assessing the Performance of MODIS NDVI and EVI for Seasonal Crop Yield Forecasting at the Ecodistrict Scale |
---|---|
ERA Journal ID | 201448 |
Article Category | Article |
Authors | Kouadio, Louis (Author), Newlands, Nathaniel K. (Author), Davidson, Andrew (Author), Zhang, Yinsuo (Author) and Chipanshi, Aston (Author) |
Journal Title | Remote Sensing |
Journal Citation | 6 (10), pp. 10193-10214 |
Number of Pages | 22 |
Year | 2014 |
Publisher | MDPI AG |
Place of Publication | Switzerland |
ISSN | 2072-4292 |
Digital Object Identifier (DOI) | https://doi.org/10.3390/rs61010193 |
Web Address (URL) | http://www.mdpi.com/2072-4292/6/10/10193 |
Abstract | Crop yield forecasting plays a vital role in coping with the challenges of the impacts of climate change on agriculture. Improvements in the timeliness and accuracy of yield forecasting by incorporating near real-time remote sensing data and the use of sophisticated statistical methods can improve our capacity to respond effectively to these challenges. The objectives of this study were (i) to investigate the use of derived vegetation indices for the yield forecasting of spring wheat (Triticum aestivum L.) from the Moderate resolution Imaging Spectroradiometer (MODIS) at the ecodistrict scale across Western Canada with the Integrated Canadian Crop Yield Forecaster (ICCYF); and (ii) to compare the ICCYF-model based forecasts and their accuracy across two spatial scales-the ecodistrict and Census Agricultural Region (CAR), namely in CAR with previously reported ICCYF weak performance. Ecodistricts are areas with distinct climate, soil, landscape and ecological aspects, whereas CARs are census-based/statistically-delineated areas. Agroclimate variables combined respectively with MODIS-NDVI and MODIS-EVI indices were used as inputs for the in-season yield forecasting of spring wheat during the 2000-2010 period. Regression models were built based on a procedure of a leave-one-year-out. The results showed that both agroclimate + MODIS-NDVI and agroclimate + MODIS-EVI performed equally well predicting spring wheat yield at the ECD scale. The mean absolute error percentages (MAPE) of the models selected from both the two data sets ranged from 2% to 33% over the study period. The model efficiency index (MEI) varied between ??1.1 and 0.99 and ??1.8 and 0.99, respectively for the agroclimate + MODIS-NDVI and agroclimate + MODIS-EVI data sets. Moreover, significant improvement in forecasting skill (with decreasing MAPE of 40% and 5 times increasing MEI, on average) was obtained at the finer, ecodistrict spatial scale, compared to the coarser CAR scale. Forecast models need to consider the distribution of extreme values of predictor variables to improve the selection of remote sensing indices. Our findings indicate that statistical-based forecasting error could be significantly reduced by making use of MODIS-EVI and NDVI indices at different times in the crop growing season and within different sub-regions. |
Keywords | ecodistrict; yield forecasting; MODIS; ICCYF; spring wheat |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 300205. Agricultural production systems simulation |
300207. Agricultural systems analysis and modelling | |
401302. Geospatial information systems and geospatial data modelling | |
Byline Affiliations | Agriculture and Agri-Food, Canada |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q2v38/assessing-the-performance-of-modis-ndvi-and-evi-for-seasonal-crop-yield-forecasting-at-the-ecodistrict-scale
Download files
Published Version
Remotesensing_06_10193_Kouadio-et-al-2014.pdf | ||
License: CC BY | ||
File access level: Anyone |
1690
total views168
total downloads1
views this month0
downloads this month