Is TRMM product good proxy for gauge precipitation over peat land area of the South Sumatera?

Irfan, Muhammad; Mardiansyah, Wijaya; Ariani, Menik; Sulaiman, Albertus; Iskandar, Iskhaq

doi:10.1088/1742-6596/1282/1/012021

Cited by 9 publications

(6 citation statements)

References 8 publications

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“…The SESAME equipment system has been installed in Kalimantan since 2018, therefore the data used in this study is data from that year. The Peat and Mangrove Restoration Agency manage SESAME [16][17].…”

Section: Methodsmentioning

confidence: 99%

“…Research to determine the dynamics of these parameters during the extreme dry season and an extremely rainy season is very important as an effort to mitigate fire and flood disasters on these peatlands. Previous research has been conducted on the dynamics of these parameters in the South Sumatra region for 2019 [16][17]. This research was conducted in the Kalimantan region for three years, 2018, 2019, and 2020.…”

Section: Research Significancementioning

confidence: 99%

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The Impact of Positive Iod and La Niña on the Dynamics of Hydro-Climatological Parameters on Peatland

Irfan¹

2022

GEOMATE

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Peatlands in Indonesia are highly flammable during extremely dry seasons and are prone to flooding during extreme rainy seasons. This incident is related to the dynamics of the hydro-climatological parameters of the peatland. In 2019 the IOD+ phenomenon occurred which caused extreme drought and in 2020 there was a La Niña phenomenon that caused above-average rainfall. This study aims to determine and compare the dynamics of hydro-climatological parameters in the dry season during the 2018 normal climate, when there is IOD+ 2019, and when there is La Niña 2020. The data used are the results of in situ measurements by an integrated measurement system called SESAME and the measurement data of the MODIS satellite. The results of this study show that the rainfall and groundwater level during the IOD+ phenomenon in 2019 was lower than during the normal climate in 2018, while during La Niña in 2020 it was higher than during the normal climate in 2018. This study found a relationship that rainfall affecting groundwater level, and groundwater level affecting the number of hotspots, but their correlation is not significant. It is also found that hotspots can appear when the groundwater level reaches -0.65 m in West Kalimantan and -0.81 m in Central Kalimantan.

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Section: Methodsmentioning

confidence: 99%

Section: Research Significancementioning

confidence: 99%

The Impact of Positive Iod and La Niña on the Dynamics of Hydro-Climatological Parameters on Peatland

Irfan¹

2022

GEOMATE

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“…The data-filtering process using the WK99 method was Furthermore, a verification process was performed using a three-year 3B42 daily precipitation dataset from 1 January 2016 to 31 December 2018. As 3B42-TRMM is a good proxy for real precipitation on the surface, it was therefore employed to evaluate both forecast calculations (Huffman et al, 2006;Irfan et al, 2019). To adjust the initial time of the verification process to the prediction process, a full 2006 through 2015 dataset combined with the 2016 dataset was run to obtain the last day analysis of MJO and CCEW atmospheric data as if it in the real operational mode.…”

Section: Methodsmentioning

confidence: 99%

Comparison of forecasting accuracy for Madden Julian Oscillation (MJO) and Convectively Coupled Equatorial Waves (CCEW) using Tropical Rainfall Measuring Mission (TRMM) and ERA-Interim precipitation forecast data for Indonesia

Pramuwardani

HARTONO

Sunarto

et al. 2021

ATM

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Tropical Rainfall Measuring Mission (TRMM) and ERA-Interim forecast data analyzed using second-order autoregressive AR(2) and space-time-spectra analysis methods (respectively) revealed contrasting results for predicting Madden Julian Oscillation (MJO) and Convectively Coupled Equatorial Waves (CCEW) phenomena over Indonesia. This research used the same 13-year series of daily TRMM 3B42 V7 derived datasets and ERA-Interim reanalysis model datasets from the European Center for Medium-Range Weather Forecasts (ECMWF) for precipitation forecasts. Three years (2016 to 2018) of the filtered 3B42 and ERA-Interim forecast data was then used to evaluate forecast accuracy by looking at correlation coefficients for forecast leads from day +1 through day +7. The results revealed that rainfall estimation data from 3B42 provides better results for the shorter forecast leads, particularly for MJO, equatorial Rossby (ER), mixed Rossby-gravity (MRG), and inertia-gravity phenomena in zonal wavenumber 1 (IG1), but gives poor correlation for Kelvin waves for all forecast leads. A consistent correlation for all waves was achieved from the filtered ERA-Interim precipitation forecast model, and although this was quite weak for the first forecast leads it did not reach a negative correlation in the later forecast leads except for IG1. Furthermore, Root Mean Square Error (RMSE) was also calculated to complement forecasting skills for both data sources, with the result that residual RMSE for the filtered ERA-Interim precipitation forecast was quite small during all forecast leads and for all wave types. These findings prove that the ERA-Interim precipitation forecast model remains an adequate precipitation model in the tropics for MJO and CCEW forecasting, specifically for Indonesia.

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“…As described above, this study also uses a linear regression method. is a statistical method that functions to help estimate the value of an unknown variable from one or more known variables (Irfan et al, 2020;Yoshihiro, 2020;Irfan et al, 2019).…”

Section: Counting the Number Of Classes (Nc)mentioning

confidence: 99%

Ability to Read Quran and Understanding of Tajwid for Sriwijaya University Students

Safrina

Irfan

2020

Conciencia

Self Cite

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The ability to read the Al Quran and understanding the tajwid are two things that cannot be separated. Good reading skills without understanding the knowledge of tajwid will make the reading misleading. This study aims to determine the ability to read AlQuran, the ability to understand tajwid, and the correlation between these two variables in Sriwijaya University students. This research data was taken from 100 new Sriwijaya University students in 2019 and analyzed using statistical methods. The results of this study indicate that the majority of Sriwijaya University new students (42%) have reading skills in the range of 64-71 values and the majority of mastery of tajwid (36%) in the range of values 56-63. The results of this study also indicate that there was a significant correlation between the mastery of tajwid and the ability to read AlQuran with a correlation coefficient (r) of 0.98.

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Is TRMM product good proxy for gauge precipitation over peat land area of the South Sumatera?

Cited by 9 publications

References 8 publications

The Impact of Positive Iod and La Niña on the Dynamics of Hydro-Climatological Parameters on Peatland

The Impact of Positive Iod and La Niña on the Dynamics of Hydro-Climatological Parameters on Peatland

Comparison of forecasting accuracy for Madden Julian Oscillation (MJO) and Convectively Coupled Equatorial Waves (CCEW) using Tropical Rainfall Measuring Mission (TRMM) and ERA-Interim precipitation forecast data for Indonesia

Ability to Read Quran and Understanding of Tajwid for Sriwijaya University Students

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