Arid
DOI10.1007/s40333-017-0014-6
A remote sensing-based agricultural drought indicator and its implementation over a semi-arid region, Jordan
Hazaymeh, Khaled1,2; Hassan, Quazi K.1
通讯作者Hassan, Quazi K.
来源期刊JOURNAL OF ARID LAND
ISSN1674-6767
EISSN2194-7783
出版年2017
卷号9期号:3页码:319-330
英文摘要

The objective of the study was to develop a remote sensing (i.e., Landsat-8 and MODIS)-based agricultural drought indicator (ADI) at 30-m spatial resolution and 8-day temporal resolution and also to evaluate its performance over a heterogeneous agriculture dominant semi-arid region in Jordan. Firstly, we used principal component analysis (PCA) to evaluate the correlations among six commonly used remote sensing-derived agricultural drought related variables. The variables included normalized difference water index (NDWI), normalized difference vegetation index (NDVI), visible and shortwave drought index (VSDI), normalized multiband drought index (NMDI), moisture stress index (MSI), and land surface temperature (LST). Secondly, we integrated the relatively less correlated variables (that were found to be NDWI, VSDI, and LST) to generate four agricultural drought categories/conditions (i.e., wet, mild drought, moderate drought, and severe drought). Finally, we evaluated the ADI maps against a set of 8-day ground-based standardized precipitation index values (i.e., SPI-1, SPI-2, ..., SPI-8) by use of confusion matrices and observed the best results for SPI-4 (i.e., overall accuracy and Kappa-values were 83% and 76%, respectively) and SPI-5 (i.e., overall accuracy and Kappa-values were 85% and 78%, respectively). The results demonstrated that the method would be valuable for monitoring agricultural drought conditions in semi-arid regions at both a reasonably high spatial resolution (i.e., 30-m) and a short time period (i.e., 8-day).


英文关键词spatio-temporal image fusion model (STI-FM) land surface temperature (LST) surface reflectance standardized precipitation index (SPI) Landsat-8 MODIS
类型Article
语种英语
国家Canada ; Jordan
收录类别SCI-E
WOS记录号WOS:000401445300001
WOS关键词LAND-SURFACE TEMPERATURE ; CROP WATER-STRESS ; SOIL-MOISTURE ; INDEX SPACE ; RETRIEVAL ; ALBERTA ; MODEL
WOS类目Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/200172
作者单位1.Univ Calgary, Schulich Sch Engn, Dept Geomat Engn, Calgary, AB, Canada;
2.Yarmouk Univ, Fac Arts, Dept Geog, Irbid 21163, Jordan
推荐引用方式
GB/T 7714
Hazaymeh, Khaled,Hassan, Quazi K.. A remote sensing-based agricultural drought indicator and its implementation over a semi-arid region, Jordan[J],2017,9(3):319-330.
APA Hazaymeh, Khaled,&Hassan, Quazi K..(2017).A remote sensing-based agricultural drought indicator and its implementation over a semi-arid region, Jordan.JOURNAL OF ARID LAND,9(3),319-330.
MLA Hazaymeh, Khaled,et al."A remote sensing-based agricultural drought indicator and its implementation over a semi-arid region, Jordan".JOURNAL OF ARID LAND 9.3(2017):319-330.
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