SIMULASI HUJAN EKSTRIM PADA KEJADIAN BANJIR DI MATARAM TANGGAL 10 JANUARI 2009 MENGGUNAKAN WRF-EMS

Authors

  • Wido Hanggoro Badan Meteorologi Klimatologi dan Geofisika (BMKG)
  • Iis Widya Harmoko Badan Meteorologi Klimatologi dan Geofisika (BMKG)
  • Erwin Eka Syahputra Makmur Badan Meteorologi Klimatologi dan Geofisika (BMKG)

DOI:

https://doi.org/10.31172/jmg.v13i1.120

Keywords:

WRF EMS, IDW, simulasi, hujan ekstrim

Abstract

Kejadian hujan ekstrim pada tanggal 10 Januari 2009 yang mengakibatkan banjir di Mataram disimulasaikan secara numerik dengan menggunakan dua model. Pertama, digunakan model WRF EMS (Weather Research and Forecasting Environmental Modeling System) dengan resolusi 5 dan 15 km. Kedua, menggunakan model IDW (Inverse Distance Weighted) dengan resolusi 15 km. Hasil simulasi tersebut dibandingkan dengan pola distirbusi curah hujan hasil pengamatan pada tanggal-tanggal yang sama. Hasil simulasi keduanya menunjukkan kesamaan dengan nilai korelasi mencapai R 0,43 dan RSME 83,24 untuk kasus hujan pada tanggal 10 Januari 2009, sedangkan simulasi hujan untuk tanggal 5 – 11 Januari 2009 menunjukkan nilai rata-rata korelasi, koreksi dan  RSME masing-masing 0,30; 5,25 dan 41,60.

 

Two numerical simulation models were used to simulate extreme rainfall on January 10, 2009 that caused flood in Mataram, i.e. WRF EMS (Weather Research and ForecastingEnvironmental Modeling System) and IDW (Inverse Distance Weighted), respectively. The result based on 15 km and 5 km resolusions were compared with the distribution pattern on the same date. The 15 km resolution on IDW method showed value of R 0.43 and RMSE 83.24 for January 10, 2009, whilst the average correlation, correction and RMSE for January 5-11, 2009 are respectively 0.30, 41.60 and -5.25 m, respectively.

Downloads

Published

2012-04-15

How to Cite

Hanggoro, W., Harmoko, I. W., & Makmur, E. E. S. (2012). SIMULASI HUJAN EKSTRIM PADA KEJADIAN BANJIR DI MATARAM TANGGAL 10 JANUARI 2009 MENGGUNAKAN WRF-EMS. Jurnal Meteorologi Dan Geofisika, 13(1). https://doi.org/10.31172/jmg.v13i1.120

Issue

Vol. 13 No. 1 (2012)

Section

Article

License

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.