Uncertainty Analysis of Actual Evapotranspiration Estimations Using Satellite Data and Climate Databases (Case Study: Karkheh Basin)

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

GHAREHKHANI ABUZAR; GHAHREMAN NOZAR; IRANNEJAD PARVIZ

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Iranian Journal of Soil and Water Research Year:2020 | Volume:51 | Issue:5 Page(s): 1177-1193

Download Full-Text

Persian Verion

View:

325

Download:

Cites:

Information Journal Paper

Title

Uncertainty Analysis of Actual Evapotranspiration Estimations Using Satellite Data and Climate Databases (Case Study: Karkheh Basin)

Author(s)

GHAREHKHANI ABUZAR | GHAHREMAN NOZAR | IRANNEJAD PARVIZ | Issue Writer Certificate

Keywords

EvapotranspirationQ1

UncertaintyQ1

Land UseQ2

Karkheh BasinQ2

IranQ2

Abstract

Evapotranspiration is an important component of water balance and a key element in water resources management, especially in arid and semi-arid regions such as Iran. The purpose of this study is to investigate the Uncertainty of actual Evapotranspiration (ETa) estimates derived from a remote sensing-based model, i. e. Priestley– Taylor Model (PT-JPT), and two global climate datasets namely GLEAM and ERA-Interim in Karkheh Basin southwest of Iran during the 2013-2017 period. The three cornered hat (TCH) method was used to analyze the Uncertainty for each spatial cell (0. 25× 0. 25) in the basin. The results of Uncertainty analysis showed that ETERA-Interim, ETGLEAM, and ETPT-JPT data have the lowest relative Uncertainty in 38%, 12. 6% and 49. 4% of cells, respectively. The highest percentage of cells with lowest Uncertainty in Seimare, South Karkhe and Gamasiab sub-basins was correspond to ETPT-JPT model (54. 4%, 72. 3%, and 50%, respectively). In Gharehsoo and Kashkan sub-basins the ETERA-Interim estimations were found as the method with least Uncertainty, (55. 5% and 53. 4%, respectively). The highest number of cells with lowest relative Uncertainty belongs to ETERA-Interim. Considering the lowest Uncertainty, variation of actual Evapotranspiration with elevation in Karkhe basin showed that the two databases and PT-JPT model perform well at 1400 to 1800 m above sea level. ETPT-JPT model did a better job in warm dry climates. ETERA-Interim and ETGLEAM data estimations were selected as the best methods in semi-humid temperate and hyper-humid-cold climates, respectively. In cells with farm-garden and forest Land Use, ETGLEAM have the lowest Uncertainty. Similarly, in rangelands, both ETPT-JPT and ETERA-Interim databases, and for drylands, ETERA-Interim data can be recommended. Further feasibility studies in other climates are required for more scrutiny.

Cites

No record.

References

No record.

Cite

APA: Copy

GHAREHKHANI, ABUZAR, GHAHREMAN, NOZAR, & IRANNEJAD, PARVIZ. (2020). Uncertainty Analysis of Actual Evapotranspiration Estimations Using Satellite Data and Climate Databases (Case Study: Karkheh Basin). IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, 51(5 ), 1177-1193. SID. https://sid.ir/paper/364096/en

Vancouver: Copy

GHAREHKHANI ABUZAR, GHAHREMAN NOZAR, IRANNEJAD PARVIZ. Uncertainty Analysis of Actual Evapotranspiration Estimations Using Satellite Data and Climate Databases (Case Study: Karkheh Basin). IRANIAN JOURNAL OF SOIL AND WATER RESEARCH[Internet]. 2020;51(5 ):1177-1193. Available from: https://sid.ir/paper/364096/en

IEEE: Copy

ABUZAR GHAREHKHANI, NOZAR GHAHREMAN, and PARVIZ IRANNEJAD, “Uncertainty Analysis of Actual Evapotranspiration Estimations Using Satellite Data and Climate Databases (Case Study: Karkheh Basin),” IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, vol. 51, no. 5 , pp. 1177–1193, 2020, [Online]. Available: https://sid.ir/paper/364096/en

Related Journal Papers