University of Oulu

Accuracy assessment of remote sensing altimetry : an integrated approach of lake water level response

Saved in:
Author: Rabbil, Mehedi1
Organizations: 1University of Oulu, Faculty of Technology, Environmental Engineering
Format: ebook
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 2.3 MB)
Pages: 51
Persistent link: http://urn.fi/URN:NBN:fi:oulu-201910172982
Language: English
Published: Oulu : M. Rabbil, 2019
Publish Date: 2019-10-17
Thesis type: Master's thesis (tech)
Tutor: Torabi Haghighi, Ali
Bhattacharjee, Joy
Reviewer: Torabi Haghighi, Ali
Bhattacharjee, Joy
Description:

Abstract

Declination of lake water levels are extensively influenced by anthropogenic activities along with basin size, topography, and lake size. Lake Urmia was one of the largest hypersaline lakes in north-west Iran. Main outflow from the lake are evaporation and possible groundwater flux, whereas major sources of inflow are surrounding rivers and several streams. Overall, annual evaporation is higher than precipitation. The lake Water Level Fluctuation (WLF) is a function of inflow, rainfall, evaporation and groundwater flux. The aim of this study is to assess the accuracy of different Remote Sensing (RS) data which influences on WLF. Variation of Lake Urmia WLF in several sections were estimated based on different satellite missions e.g. Jason-2 and Jason-3 and compared with observed data and DAHITI dataset. The outcome showed that the algorithm of estimated WLF indicates better outline in some sections in Lake Urmia while some cases are not in good harmony with observed and DAHITI data. In order to find RS data accuracy, different driving factors on WLF were integrated by applying Water Balance simulation with combination of different scenarios for 2003–2007. The results showed the scenario which combines all observed data, has best pattern with observed Water Level of the lake to explain the response of the lake.

see all

Subjects:
Copyright information: © Mehedi Rabbil, 2019. This publication is copyrighted. You may download, display and print it for your own personal use. Commercial use is prohibited.