Remote sensing techniques for predicting evapotranspiration from mixed vegetated surfaces

Hamideh Nouri, Simon Beecham, Sharolyn Anderson, Ali Morad Hassanli, Fatemeh Kazemi

Research output: Contribution to journalArticleAcademicpeer-review

21 Citations (Scopus)

Abstract

Evapotranspiration (ET) is a key component of the hydrological cycle however it is also the most difficult factor to quantify. In recent decades, estimating ET has been improved by advances in remote sensing, particularly in agricultural studies. However, quantifying ET from mixed vegetation environs, particularly urban parklands, is still challenging due to the heterogeneity of plant species, canopy covers, microclimates, and because of costly methodological requirements. Several studies have recently been conducted in agriculture and forestry which may be useful for mixed landscape vegetation studies with some modifications. This review describes general remote sensing-based approaches to estimate ET and describes their advantages and disadvantages. Most of these approaches need extensive time investment, medium to high skill levels and are quite expensive. However, in addition to the reviewed methods, the authors recommend combining remotely sensed vegetation indices and ground-based techniques for ET estimation of mixed landscape vegetation such as urban parklands.
Original languageEnglish
Pages (from-to)380-393
JournalUrban Water Journal
Volume12
Issue number5
DOIs
Publication statusPublished - 4 Jul 2015
Externally publishedYes

Keywords

  • satellite/airborne images
  • remote sensing
  • urban parklands
  • spatial and temporal heterogeneity
  • evapotranspiration

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