Spatial modeling on the upperstream of the Citarum watershed: An application of geoinformatics

Windy Setia Ningrum, Yekti Widyaningsih, Tito Latif

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The Citarum watershed is the longest and the largest watershed in West Java, Indonesia, located at 106°51'36''-107°51' E and 7°19'-6°24'S across 10 districts, and serves as the water supply for over 15 million people. In this area, the water criticality index is concerned to reach the balance between water supply and water demand, so that in the dry season, the watershed is still able to meet the water needs of the society along the Citarum river. The objective of this research is to evaluate the water criticality index of Citarum watershed area using spatial model to overcome the spatial dependencies in the data. The result of Lagrange multiplier diagnostics for spatial dependence results are LM-err = 34.6 (p-value = 4.1e-09) and LM-lag = 8.05 (p-value = 0.005), then modeling using Spatial Lag Model (SLM) and Spatial Error Model (SEM) were conducted. The likelihood ratio test show that both of SLM dan SEM model is better than OLS model in modeling water criticality index in Citarum watershed. The AIC value of SLM and SEM model are 78.9 and 51.4, then the SEM model is better than SLM model in predicting water criticality index in Citarum watershed.

Original languageEnglish
Title of host publicationStatistics and Its Applications
Subtitle of host publicationProceedings of the 2nd International Conference on Applied Statistics, ICAS 2016
EditorsYudhie Andriyana, Yusep Suparman, Jadi Suprijadi
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735414952
DOIs
Publication statusPublished - 30 Mar 2017
Event2nd International Conference on Applied Statistics: Statistics and Its Applications, ICAS 2016 - Jawa Barat, Indonesia
Duration: 27 Sep 201628 Sep 2016

Publication series

NameAIP Conference Proceedings
Volume1827
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2nd International Conference on Applied Statistics: Statistics and Its Applications, ICAS 2016
CountryIndonesia
CityJawa Barat
Period27/09/1628/09/16

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