EVALUASI PENYIMPANGAN DATA HUJAN SATELIT TRMM JAXA DALAM ANALISIS CURAH HUJAN RANCANGAN DI WILAYAH SUMBAWA

Evaluation of TRMM JAXA Satellite Rainfall Data on Design Rainfall Analysis in Sumbawa

Authors

Humairo saidah , Agustono Setiawan , Ery Setiawan , Salehudin Salehudin

DOI:

10.29303/spektrum.v10i1.305

Published:

2023-03-22

Issue:

Vol. 10 No. 1 (2023): SPEKTRUM SIPIL

Keywords:

TRMM JAXA, Curah hujan rancangan, Akurasi

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How to Cite

saidah, H., Setiawan, A., Setiawan, E., & Salehudin, S. (2023). EVALUASI PENYIMPANGAN DATA HUJAN SATELIT TRMM JAXA DALAM ANALISIS CURAH HUJAN RANCANGAN DI WILAYAH SUMBAWA: Evaluation of TRMM JAXA Satellite Rainfall Data on Design Rainfall Analysis in Sumbawa. Spektrum Sipil, 10(1), 88–97. https://doi.org/10.29303/spektrum.v10i1.305

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Abstract

Pemanfaatan data hujan satelit sebagai salah satu alternatif penyedia jasa semakin dirasakan manfaatnya, utamanya bagi daerah yang memiliki stasiun penakar hujan terbatas. Salah satu satelit penyedia data hujan yang cakupan wilayahnya termasuk Indonesia adalah TRMM JAXA. Penelitian ini menguji seberapa jauh kedekatan data hujan dari TRMM JAXA dibandingkan data hujan pengukuran. Tahapan dimulai dengan mengumpulkan data hujan dilanjutkan dengan perhitungan hujan rancangan, dan mengukur penyimpangannya dengan nilai RMSE dan BIAS. Hasil yang diperoleh menunjukkan bahwa data hujan dari satelit TRMM JAXA di Wilayah Sumbawa cenderung underestimate dan memiliki tingkat akurasi yang cukup dibandingkan data hujan pengamatan dengan penyimpangan rerata sebesar -0.05. Besaran hujan rancangan yang dihasilkan dari analisis frekuensi menggunakan data hujan satelit TRMM JAXA memiliki penyimpangan yang cukup besar yaitu sebesar 21%.

Author Biographies

Humairo saidah, Universitas Mataram

Agustono Setiawan, Universitas Mataram

Ery Setiawan, Universitas Mataram

Salehudin Salehudin, Universitas Mataram

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Copyright (c) 2023 Humairo saidah, Agustono Setiawan, Ery Setiawan, Salehudin Salehudin

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