Title :
Spectral Indices for Estimating Exposed Carbonate Rock Fraction in Karst Areas of Southwest China
Author :
Xiangjian Xie ; Peijun Du ; Junshi Xia ; Jieqiong Luo
Author_Institution :
Key Lab. for Satellite Mapping Technol. & Applic., Nat. Adm. of Surveying, Mapping & Geoinf. of China, Beijing, China
Abstract :
The quantitative estimation of the fractional cover of carbonate rock (CR) is critical for natural resource management and ecological conservation in karst areas. Based on the analysis of spectral properties of CR together with other land cover types, we proposed two CR indices (CRIs) and established the model that represents the relationships between the CRIs and the fractional cover of CR. Then, the fractional cover of CR was estimated by using the developed model. Experimental results on Landsat-8 Operational Land Imager images acquired at Southwestern China demonstrated the effectiveness of the developed model. Compared with other indices, the proposed CRIs show the highest correlations with the fractional cover of CR.
Keywords :
ecology; estimation theory; land cover; rocks; Landsat-8 OLI image; Operational Land Imager; carbonate rock fraction estimation; carbonate rock spectral index; carbonate rock spectral property analysis; ecological conservation; karst area; land cover type; natural resource management; southwest China; Biological system modeling; Earth; Remote sensing; Rocks; Satellites; Soil; Vegetation mapping; Carbonate rock indices (CRIs); Landsat Data Continuity Mission (LDCM) Operational Land Imager (OLI); fractional cover; karst ecosystem; remote sensing; spectral index;
Journal_Title :
Geoscience and Remote Sensing Letters, IEEE
DOI :
10.1109/LGRS.2015.2441962
