Next Article in Journal
Geomechanical Studies on Granite Intrusions in Alxa Area for High-Level Radioactive Waste Disposal
Next Article in Special Issue
Does Suburbanization Cause Ecological Deterioration? An Empirical Analysis of Shanghai, China
Previous Article in Journal
Factors Influencing Farmers’ Willingness to Participate in Wetland Restoration: Evidence from China
Previous Article in Special Issue
Assessing Wheat Frost Risk with the Support of GIS: An Approach Coupling a Growing Season Meteorological Index and a Hybrid Fuzzy Neural Network Model
Article Menu

Export Article

Open AccessArticle
Sustainability 2016, 8(12), 1327; doi:10.3390/su8121327

The Spatiotemporal Variation of Drought in the Beijing-Tianjin-Hebei Metropolitan Region (BTHMR) Based on the Modified TVDI

1,2,3
,
2,3,* , 1
,
2,4
,
2,4
and
2,3,4
1
College of Geomatics, Shandong University of Science and Technology, Qingdao 266590, China
2
College of Mining and Geomatics, Hebei University of Engineering, Handan 056038, China
3
Collaborative Innovation Center of Comprehensive Development and Utilization of Coal Resource, Handan 056021, China
4
Research Center of Hebei Province Ecological Civilization and Social Governance, Handan 056021, China
*
Author to whom correspondence should be addressed.
Academic Editor: Marc A. Rosen
Received: 19 October 2016 / Revised: 27 November 2016 / Accepted: 13 December 2016 / Published: 16 December 2016
(This article belongs to the Special Issue Sustainable Ecosystems and Society in the Context of Big and New Data)
View Full-Text   |   Download PDF [5407 KB, uploaded 16 December 2016]   |  

Abstract

This study proposes a modified vegetation-dependent temperature-vegetation dryness index (TVDI) model for analyzing regional drought disasters in the Beijing-Tianjin-Hebei Metropolitan Region (BTHMR) of China. First, MODIS monthly normalized difference vegetation index (NDVI), land surface temperature (LST) data and land use/cover data (Land cover type2) were pre-processed as a consistent big dataset. The land use/cover data were modified and integrated into six primary types. Then, these land types were used as the base data layer to calculate the TVDI by parameterizing the relationship between the MODIS NDVI and LST data. By emphasizing different types of land uses, this study was able to compare and analyze the differences of the TVDI indices between the entire study area (no consideration of the land types) and the six classified land uses. The soil moisture data were used to validate the modified TVDI values based on different land uses, which confirmed that the modified model more effectively reflected drought conditions. Finally, the aforementioned model was used to analyze the temporal and spatial variation of drought experienced by vegetation cover from 2000 to 2014. The results of the modified model were validated with the synchronized soil moisture and precipitation data. The case study clearly demonstrated that the modified TVDI model, which is based on different vegetation indexes, could better reflect the drought conditions of the study area. View Full-Text
Keywords: BTHMR; TVDI; drought; spatiotemporal variation BTHMR; TVDI; drought; spatiotemporal variation
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Liu, H.; Zhang, A.; Jiang, T.; Lv, H.; Liu, X.; Wang, H. The Spatiotemporal Variation of Drought in the Beijing-Tianjin-Hebei Metropolitan Region (BTHMR) Based on the Modified TVDI. Sustainability 2016, 8, 1327.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sustainability EISSN 2071-1050 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top