Comparative Analysis on Two Schemes for Synthesizing the High Temporal Landsat-like NDVI Dataset Based on the STARFM Algorithm

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 数字山地与遥感应用中心

	Comparative Analysis on Two Schemes for Synthesizing the High Temporal Landsat-like NDVI Dataset Based on the STARFM Algorithm
	Li, Ainong1 ; Zhang, Wei1 ; Lei, Guangbin1,2 ; Bian, Jinhu1,2
刊名	ISPRS International Journal of Geo-Information
	2015-09-01
卷号	4 期号:3 页码:1423-1441
关键词	high temporal and spatial resolutions time-series NDVI Spatial and Temporal Adaptive Reflectance Fusion Model (STARFM) cropping intensity crop peak date hills area
ISSN号	2220-9964
通讯作者	Li, Ainong
英文摘要	The NDVI dataset with high temporal and spatial resolution (HTSN) is significant for extracting information about the phenological change of vegetation in regions with a complex earth surface. The Spatial and Temporal Adaptive Reflectance Fusion Model (STARFM) has been successfully applied to synthesize the HTSN by fusing the data with different characteristics. Based on the model, there are two different schemes for synthesizing the HTSN. One scheme is that red reflectance and near-infrared (NIR) reflectance are synthesized, respectively, and the HTSN is then obtained through algebraic operation (Scheme 1); the other scheme is that the red and NIR reflectance are used to calculate NDVI, which is directly taken as input data to synthesize the HTSN (Scheme 2). In this paper, taking the hill areas in eastern Sichuan China as a case, the two schemes were compared with each other. Seven Landsat images and time-series MOD13Q1 datasets spanning from October 2001 to February 2003 were used as the test data. The results showed the prediction accuracies of both derived HTSNs by the two different schemes were generally in good agreement, and Scheme 2 was slightly superior to Scheme 1 (R-2: 0.14 < Scheme 1 < 0.53; 0.15 < Scheme 2 < 0.53). Although the two HTSNs showed high temporal and spatial consistence, the small spatiotemporal difference between them had a different influence on different applications. The coincidence rate of cropping intensity extracted from two derived HTSNs was fairly high, reaching up to 93.86%, while the coincidence rate of crop peak dates (i.e., the emerging dates of peaks in an annual time-series NDVI curve) was only 70.95%. Therefore, it is deemed that Scheme 2 can replace Scheme 1 in the application of extracting cropping intensity, so that more calculation time and memory space can be saved. For extracting more quantitative crop phenological information like crop peak dates, more tests are still needed in order to compare the absolute accuracy for both schemes.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Geography, Physical ; Remote Sensing
研究领域[WOS]	Physical Geography ; Remote Sensing
关键词[WOS]	MODIS SURFACE REFLECTANCE ; TIME-SERIES DATA ; FUSION MODEL ; VEGETATION PHENOLOGY ; BLENDING LANDSAT ; RESOLUTION ; TEMPERATURE ; DYNAMICS ; FOREST
收录类别	SCI
语种	英语
WOS记录号	WOS:000364411500020
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/13841]
专题	成都山地灾害与环境研究所_数字山地与遥感应用中心
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Ainong,Zhang, Wei,Lei, Guangbin,et al. Comparative Analysis on Two Schemes for Synthesizing the High Temporal Landsat-like NDVI Dataset Based on the STARFM Algorithm[J]. ISPRS International Journal of Geo-Information,2015,4(3):1423-1441.
APA	Li, Ainong,Zhang, Wei,Lei, Guangbin,&Bian, Jinhu.(2015).Comparative Analysis on Two Schemes for Synthesizing the High Temporal Landsat-like NDVI Dataset Based on the STARFM Algorithm.ISPRS International Journal of Geo-Information,4(3),1423-1441.
MLA	Li, Ainong,et al."Comparative Analysis on Two Schemes for Synthesizing the High Temporal Landsat-like NDVI Dataset Based on the STARFM Algorithm".ISPRS International Journal of Geo-Information 4.3(2015):1423-1441.