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

Volume

12

Issue

9

fYear

2015

fDate

Sept. 2015

Firstpage

1988

Lastpage

1992

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;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing Letters, IEEE

Publisher

ieee

ISSN

1545-598X

Type

jour

DOI

10.1109/LGRS.2015.2441962

Filename

7123583