Next Article in Journal
Long-Term Mapping of a Greenhouse in a Typical Protected Agricultural Region Using Landsat Imagery and the Google Earth Engine
Next Article in Special Issue
Spatiotemporal Distribution and Risk Assessment of Heat Waves Based on Apparent Temperature in the One Belt and One Road Region
Previous Article in Journal
A Large-Scene Deceptive Jamming Method for Space-Borne SAR Based on Time-Delay and Frequency-Shift with Template Segmentation
Article

Exceptional Drought across Southeastern Australia Caused by Extreme Lack of Precipitation and Its Impacts on NDVI and SIF in 2018

1
Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
2
State Key Laboratory of Remote Sensing Science, Beijing Normal University, Beijing 100875, China
3
Beijing Key Laboratory for Remote Sensing of Environment and Digital Cities, Beijing 100875, China
4
Faculty of Science, University of Technology Sydney, Sydney 2007, Australia
*
Author to whom correspondence should be addressed.
Remote Sens. 2020, 12(1), 54; https://doi.org/10.3390/rs12010054
Received: 19 November 2019 / Revised: 15 December 2019 / Accepted: 19 December 2019 / Published: 21 December 2019
Increased drought frequency in Australia is a pressing concern for scholars. In 2018, a severe drought in eastern Australia was recorded by the Emergency Events Database (EM-DAT). To investigate the main causes and impacts of this drought across southeastern Australia, this work presents an overview of the drought mechanism and depicts its evolutionary process. The Standardized Precipitation Evapotranspiration Index (SPEI) from the Global Drought Monitor was used to identify the drought event and characterize its spatiotemporal distribution. The Normalized Difference Vegetation Index (NDVI) and the sun-induced chlorophyll fluorescence (SIF) were used to investigate the drought impacts on vegetation growth. In addition, the effects of drought response measures on Sustainable Development Goals (SDGs) were analyzed. Our results showed that the exceptional drought occurred across southeastern Australia from April to December, and it was most severe in July, owing to an extreme lack of precipitation and increase in temperature. Moreover, we identified profound and long-lasting impacts of the drought on NDVI and SIF levels, especially for cropland. Furthermore, we also found that SIF was superior to NDVI in detecting drought impacts. This study advised on how to formulate timely and effective drought-response measures and supports sustainable socioeconomic development in Australia. View Full-Text
Keywords: drought; impacts; SPEI; NDVI; SIF; southeastern Australia drought; impacts; SPEI; NDVI; SIF; southeastern Australia
Show Figures

Graphical abstract

MDPI and ACS Style

Tian, F.; Wu, J.; Liu, L.; Leng, S.; Yang, J.; Zhao, W.; Shen, Q. Exceptional Drought across Southeastern Australia Caused by Extreme Lack of Precipitation and Its Impacts on NDVI and SIF in 2018. Remote Sens. 2020, 12, 54. https://doi.org/10.3390/rs12010054

AMA Style

Tian F, Wu J, Liu L, Leng S, Yang J, Zhao W, Shen Q. Exceptional Drought across Southeastern Australia Caused by Extreme Lack of Precipitation and Its Impacts on NDVI and SIF in 2018. Remote Sensing. 2020; 12(1):54. https://doi.org/10.3390/rs12010054

Chicago/Turabian Style

Tian, Feng, Jianjun Wu, Leizhen Liu, Song Leng, Jianhua Yang, Wenhui Zhao, and Qiu Shen. 2020. "Exceptional Drought across Southeastern Australia Caused by Extreme Lack of Precipitation and Its Impacts on NDVI and SIF in 2018" Remote Sensing 12, no. 1: 54. https://doi.org/10.3390/rs12010054

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

Article Access Map by Country/Region

1
Back to TopTop