Effects of land use/cover change on regional land surface temperatures: severe warming from drying Toshka lakes, the Western Desert of Egypt

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Toshka depression in the Western Desert of Egypt witnessed big floods in late 1990s from the Nile River behind the High Dam, where many lakes were formed. By the year 2003, the lakes attained their maximum spatial extent. Concurrently, a huge agricultural project was designed to reshape the landscape of the Western Desert and to construct new communities outside the Nile Valley. Unfortunately, after 2003 the lakes started drying and by 2015 most of these lakes were disappeared with symptoms of soil degradation by salt crusting. The main objective of this study was to address the change in land surface temperatures (LST) resulted from the emergence and disappearance of these lakes as the main land use/land cover (LULC) change in the region. The study was performed using remote sensing and GIS. LST data were extracted using 299 satellite images acquired from the moderate resolution imaging spectroradiometer (MODIS) LST product for the period between 2003 and 2015. Results point out to the occurrence of a severe heat island caused by soil degradation due to wetting and drying of desert soils. The mean LST increased from 37.7 °C in 2003 to 42.11 °C in 2015. The primary outcome of this study is that human interference with the hydrologic setting of this hot desert is the reason for interrupting the land energy fluxes and budget. There are undoubtedly physical, ecological and social impacts of this regional warming.

Original languageEnglish
Pages (from-to)1789-1803
Number of pages15
JournalNatural Hazards
Volume88
Issue number3
DOIs
Publication statusPublished - Sep 1 2017

Fingerprint

land surface
surface temperature
warming
desert
land use
lake
soil degradation
desert soil
heat island
social impact
ecological impact
energy budget
energy flux
wetting
MODIS
land cover
dam
GIS
effect
drying

Keywords

  • Land surface temperature
  • Remote sensing
  • Salinization
  • Toshka

ASJC Scopus subject areas

  • Water Science and Technology
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)

Cite this

@article{1b2cea8d3d9d4ad0ac65ce3ec740de18,
title = "Effects of land use/cover change on regional land surface temperatures: severe warming from drying Toshka lakes, the Western Desert of Egypt",
abstract = "Toshka depression in the Western Desert of Egypt witnessed big floods in late 1990s from the Nile River behind the High Dam, where many lakes were formed. By the year 2003, the lakes attained their maximum spatial extent. Concurrently, a huge agricultural project was designed to reshape the landscape of the Western Desert and to construct new communities outside the Nile Valley. Unfortunately, after 2003 the lakes started drying and by 2015 most of these lakes were disappeared with symptoms of soil degradation by salt crusting. The main objective of this study was to address the change in land surface temperatures (LST) resulted from the emergence and disappearance of these lakes as the main land use/land cover (LULC) change in the region. The study was performed using remote sensing and GIS. LST data were extracted using 299 satellite images acquired from the moderate resolution imaging spectroradiometer (MODIS) LST product for the period between 2003 and 2015. Results point out to the occurrence of a severe heat island caused by soil degradation due to wetting and drying of desert soils. The mean LST increased from 37.7 °C in 2003 to 42.11 °C in 2015. The primary outcome of this study is that human interference with the hydrologic setting of this hot desert is the reason for interrupting the land energy fluxes and budget. There are undoubtedly physical, ecological and social impacts of this regional warming.",
keywords = "Land surface temperature, Remote sensing, Salinization, Toshka",
author = "Hereher, {Mohamed E.}",
year = "2017",
month = "9",
day = "1",
doi = "10.1007/s11069-017-2946-8",
language = "English",
volume = "88",
pages = "1789--1803",
journal = "Natural Hazards",
issn = "0921-030X",
publisher = "Springer Netherlands",
number = "3",

}

TY - JOUR

T1 - Effects of land use/cover change on regional land surface temperatures

T2 - severe warming from drying Toshka lakes, the Western Desert of Egypt

AU - Hereher, Mohamed E.

PY - 2017/9/1

Y1 - 2017/9/1

N2 - Toshka depression in the Western Desert of Egypt witnessed big floods in late 1990s from the Nile River behind the High Dam, where many lakes were formed. By the year 2003, the lakes attained their maximum spatial extent. Concurrently, a huge agricultural project was designed to reshape the landscape of the Western Desert and to construct new communities outside the Nile Valley. Unfortunately, after 2003 the lakes started drying and by 2015 most of these lakes were disappeared with symptoms of soil degradation by salt crusting. The main objective of this study was to address the change in land surface temperatures (LST) resulted from the emergence and disappearance of these lakes as the main land use/land cover (LULC) change in the region. The study was performed using remote sensing and GIS. LST data were extracted using 299 satellite images acquired from the moderate resolution imaging spectroradiometer (MODIS) LST product for the period between 2003 and 2015. Results point out to the occurrence of a severe heat island caused by soil degradation due to wetting and drying of desert soils. The mean LST increased from 37.7 °C in 2003 to 42.11 °C in 2015. The primary outcome of this study is that human interference with the hydrologic setting of this hot desert is the reason for interrupting the land energy fluxes and budget. There are undoubtedly physical, ecological and social impacts of this regional warming.

AB - Toshka depression in the Western Desert of Egypt witnessed big floods in late 1990s from the Nile River behind the High Dam, where many lakes were formed. By the year 2003, the lakes attained their maximum spatial extent. Concurrently, a huge agricultural project was designed to reshape the landscape of the Western Desert and to construct new communities outside the Nile Valley. Unfortunately, after 2003 the lakes started drying and by 2015 most of these lakes were disappeared with symptoms of soil degradation by salt crusting. The main objective of this study was to address the change in land surface temperatures (LST) resulted from the emergence and disappearance of these lakes as the main land use/land cover (LULC) change in the region. The study was performed using remote sensing and GIS. LST data were extracted using 299 satellite images acquired from the moderate resolution imaging spectroradiometer (MODIS) LST product for the period between 2003 and 2015. Results point out to the occurrence of a severe heat island caused by soil degradation due to wetting and drying of desert soils. The mean LST increased from 37.7 °C in 2003 to 42.11 °C in 2015. The primary outcome of this study is that human interference with the hydrologic setting of this hot desert is the reason for interrupting the land energy fluxes and budget. There are undoubtedly physical, ecological and social impacts of this regional warming.

KW - Land surface temperature

KW - Remote sensing

KW - Salinization

KW - Toshka

UR - http://www.scopus.com/inward/record.url?scp=85020289806&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85020289806&partnerID=8YFLogxK

U2 - 10.1007/s11069-017-2946-8

DO - 10.1007/s11069-017-2946-8

M3 - Article

AN - SCOPUS:85020289806

VL - 88

SP - 1789

EP - 1803

JO - Natural Hazards

JF - Natural Hazards

SN - 0921-030X

IS - 3

ER -