Analysis of precipitation extremes based on satellite (CHIRPS) and in situ dataset over Cyprus

Katsanos, Dimitrios; Retalis, Adrianos; Tymvios, Filippos; Michaelides, Silas

doi:10.1007/s11069-016-2335-8

Cited by 55 publications

(27 citation statements)

References 20 publications

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“…To date, precipitation observation networks are sparse or nonexistent in many parts of the TP due to the complex terrain, harsh climate, and high cost [7]. Satellite precipitation products are practical means of detecting rainfall distribution over vast regions that are poorly gauged, and provide a potential complementary source beyond ground in situ data [8,9].…”

Section: Introductionmentioning

confidence: 99%

Evaluation and Hydrological Utility of the Latest GPM IMERG V5 and GSMaP V7 Precipitation Products over the Tibetan Plateau

2018

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Satellite precipitation products provide alternative precipitation data in mountain areas. This study aimed to assess the performance of the latest Global Precipitation Measurement (GPM) Integrated Multi-satellite Retrievals for GPM (IMERG) version 5 (IMERG V5) and Global Satellite Mapping of Precipitation version 7 (GSMaP V7) products and their hydrological utilities over the Tibetan Plateau (TP). Here, two IMERG Final Run products (uncalibrated IMERG (IMERG-UC) and gauge-calibrated IMERG (IMEEG-C)) and two GSMaP products (GSMaP Moving Vector with Kalman Filter (GSMaP-MVK) and gauge-adjusted GSMaP (GSMaP-Gauge)) were evaluated from April 2014 to March 2017. Results show that all four satellite precipitation products could generally capture the spatial patterns of precipitation over the TP. The two gauge-adjusted products were more consistent with the ground measurements than the satellite-only products in terms of statistical assessment. For hydrological simulation, IMERG-UC and GSMaP-MVK showed unsatisfactory performance for hydrological utility, while GSMaP-Gauge demonstrated comparable performance with gauge reference data, suggesting that GSMaP-Gauge can be selected for hydrological application in the TP. Our study also indicates that accurately measuring light rainfall and winter snow is still a challenging task for the current satellite precipitation retrievals.

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Section: Introductionmentioning

confidence: 99%

Evaluation and Hydrological Utility of the Latest GPM IMERG V5 and GSMaP V7 Precipitation Products over the Tibetan Plateau

2018

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“…Kajian data hujan ekstrem berbasis satelit di Indonesia sering dilakukan pada studi kasus banjir Indonesia seperti studi kasus Wasior Papua (Renggono et al, 2011) dan Jakarta (Syaifullah, 2013). Tidak terbatas pada studi kasus, penelitian curah hujan ekstrem berbasis satelit dalam periode yang panjang yang menghasilkan klimatologi curah hujan ekstrem juga dilakukan baik dengan data TRMM (Junaeni, 2011;Marpaung et al, 2012) dan GSMaP (Ayastana et al, 2012 (Funk et al, 2014;Funk et al, 2015 Perhitungan nilai ekstrem yang dilakukan antara lain dengan menggunakan 1) patokan nilai 50 mm sebagai ambang batas hujan lebat Badan Meteorologi Klimatologi dan Geofisika (BMKG, 2010); 2) Persentil 99 yang diadopsi dari Katsanos et al (2016); 3) Nilai Ekstrem pada rentang 3xIQR dari Q3 (Faisal, 2016); dan 4) Peak Over Threshold yang digunakan oleh Visa et al (2015). Hasil dari perhitungan ambang batas nilai ektrem akan menghasilkan nilai yang berbeda tiap grid.…”

Section: Pendahuluanunclassified

Analysis of the Extreme Rainfall Frequency in Bangka Belitung Islands Based on Climate Hazards Group Infra-Red Precipitation With Stations (Chirps) Data

Fadholi¹

2018

Jurnal Pendidikan Geografi

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This study aimed to know the distribution of extreme rainfall frequency in Babel using CHIRPS data for 36 years from . The determination of extreme threshold value uses four methods, those are BMKG heavy rainfall threshold, Quartile (Q3 + 3IQR) and Peak Over Threshold (POT). The results of frequency calculations on each grid are then mapped with Inverse Distance Weight (IDW) method in the ArcGIS application. However, there are five areas with different patterns of consistency. Northern Bangka especially in West Bangka regency is indicated as consistent high frequency area, consistent low frequency region is east coast of Bangka, while non-consistent area is west coast of Central Bangka to South Bangka regency. Two patterns in Belitung consistently show high frequency in the west and low in the east. The findings of these patterns are similar to the three zones of the season (ZOM) in Bangka established by BMKG. It can be a consideration to make ZOM in Belitung. ABSTRAKPenelitian yang bertujuan untuk mengetahui distribusi frekuensi curah hujan ekstrem di Babel ini menggunakan data CHIRPS selama 36 tahun dari 1981-2016. Penentuan nilai ambang batas (threshold) esktrem menggunakan empat metode yaitu batas nilai hujan lebat BMKG, Persentil-99, Kuartil (Q3+3IQR) dan Peak Over Threshold (POT). Hasil dari penghitungan frekuensi di tiap grid kemudian dipetakan dengan metode Inverse Distance Weight (IDW) pada aplikasi ArcGIS. Namun, dilihat dari pola konsistensinya, ada lima wilayah dengan pola konsistensi yang berbeda. Bangka bagian utara khususnya di Kabupaten Bangka Barat terindikasi sebagai wilayah konsisten frekuensi tinggi, wilayah dengan konsisten frekuensi rendah adalah pesisir timur Bangka, sedangkan wilayah nonkonsisten adalah pesisir barat Bangka bagian tengah hingga selatan sehingga dapat berfrekuensi tinggi maupun rendah. Dua pola di Belitung secara konsisten menunjukan frekuensi tinggi di bagian barat dan rendah di bagian timur. Temuan pola-pola tersebut mirip dengan tiga zona musim (ZOM) di Bangka yang ditetapkan oleh BMKG. Hal ini dapat menjadi pertimbangan pemberian ZOM di Belitung. Kata kunci: Curah hujan ekstrem, Frekuensi, CHIRPS, ZOM.

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“…CHIRPS dataset has also been used it to obtain a comprehensive evaluation of eight high spatial resolution precipitation products in an Alpine catchment, the Adige Basin in Italy [24], and to validate a hydrological model to simulate stream flow in a complex topography [25]. Additionally, the same database was successfully used for the analysis of precipitation extremes over Cyprus [26] and Bhutan [27].…”

Section: Precipitation Datasetmentioning

confidence: 99%

Wet Spells and Associated Moisture Sources Anomalies across Danube River Basin

Ciric

Nieto

Ramos

et al. 2017

Water

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Abstract:The Danube River Basin is the second longest catchment basin in Europe and exhibits intense climatological diversity. In recent decades, the frequency and intensity of daily precipitation extremes have suffered from an increment in many parts of the world, including Central and Eastern Europe. Wet spells are defined by the number of consecutive rainy days with different thresholds. The identification of wet spells and their trends in the rainfall time is very important for many sectors, such as agriculture, ecology, hydrology and water resources. Wet spells can lead to extreme events and cause floods and other disasters. In this study, we will attempt to characterise global precipitation in the context of wet spells and associated precipitation depth of wet spells in the Danube River Basin area using daily precipitation data, as well as analysing different approaches to identifying wet spells. The ten most intense wet spells were detected, and the most intense, which occurred on 23 September 1996, was studied in depth in terms of precipitation and associated anomalies, the synoptic situation and the anomalous transport of moisture using a Lagrangian approach. The existence of a marked west-east dipole in the field of sea level pressure between the Atlantic Ocean and the eastern Mediterranean leads to the anomalous moisture transport from the Northern Atlantic Ocean to the Mediterranean Sea, where a higher available amount of moisture existed, and subsequently penetrated within the low positioned over the Danube River Basin. In addition, an Atmospheric River was also responsible for the wet conditions in the Danube River Basin. The combination of all these factors was responsible for the extreme precipitation linked with the wet spell.

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Analysis of precipitation extremes based on satellite (CHIRPS) and in situ dataset over Cyprus

Cited by 55 publications

References 20 publications

Evaluation and Hydrological Utility of the Latest GPM IMERG V5 and GSMaP V7 Precipitation Products over the Tibetan Plateau

Evaluation and Hydrological Utility of the Latest GPM IMERG V5 and GSMaP V7 Precipitation Products over the Tibetan Plateau

Analysis of the Extreme Rainfall Frequency in Bangka Belitung Islands Based on Climate Hazards Group Infra-Red Precipitation With Stations (Chirps) Data

Wet Spells and Associated Moisture Sources Anomalies across Danube River Basin

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