Rainfall prediction of Cimanuk watershed regions with canonical correlation analysis (CCA)

Rustiana, Shailla; Ruchjana, Budi Nurani; Abdullah, Atje Setiawan; Hermawan, Eddy; Sipayung, Sinta Berliana; Jaya, I Gede Nyoman Mindra; Krismianto,

doi:10.1088/1742-6596/893/1/012021

Cited by 6 publications

(4 citation statements)

References 3 publications

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“…The CHIRPS set provides daily means on a 0.05 × 0.05 (~5 × 5 km) grid. These spatial and temporal resolutions are higher than most available precipitation products and CHIRPS data have been used by previous studies focusing on the MCR (Hermawan et al, 2015;Rustiana et al, 2017). While recent comparisons indicate that no single dataset is coherently better in all of the precipitation parameters analyzed (Rauniyar et al, 2017), CHIRPS outperforms other datasets at the seasonal scale and offers the best spatial distribution of daily values.…”

Section: Observational Data Setsmentioning

confidence: 93%

Evaluation of regional climate model simulated rainfall over Indonesia and its application for downscaling future climate projections

Chandrasa

Montenegro

2019

Intl Journal of Climatology

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The need for good quality information on climate and its future changes has become increasingly important for society. Of particular interest are analysis and predictions of rainfall at pertinent spatial scales. An option is the use of regional climate models (RCMs) as a physics‐based downscaling tool to retrieve higher spatial resolution information from coarser present and future climate datasets. In order to verify if simulations provide added values that result in an appropriate representation of the state of climate at finer spatial resolutions, the adoption of RCMs requires prior optimization. The performance of the Weather Research and Forecasting Model RCM in simulating precipitation over Indonesia is examined by a series of sensitivity experiments using different parameterized convective physics. Among four tested schemes, the best performance is provided by the Betts‐Miller‐Janjic (BMJ) parameterization. RCM multiannual seasonal rainfall bias outperforms or matches the reanalysis. Modeled results provide added value in simulating rainfall‐related climate indices but show low skill in recreating the annual rainfall pattern at monthly resolution. RCM precipitation exhibits complex spatial response to different ENSO phases, with El Niño conditions resulting in a general loss of model skill during the southern hemisphere spring. A series of regional climate simulations using the BMJ convective scheme forced by a future climate projection dataset show changes in rainfall aligned with previous studies.

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Section: Observational Data Setsmentioning

confidence: 93%

Evaluation of regional climate model simulated rainfall over Indonesia and its application for downscaling future climate projections

Chandrasa

Montenegro

2019

Intl Journal of Climatology

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“…The coefficient of correlation results explains the observation and predictor models. Correlation values range from -1 to 1, as shown at Table 2, are an index of the degree of the linear relationship between observed and simulated data [17,18]. If the value of R = 0 then there is no relationship between the observed data and the simulation.…”

Section: Figure 1 Study Area With the Location Of Each Rainfall Stationmentioning

confidence: 99%

NASA Power’s: an alternative rainfall data resources for hydrology research and planning activities in Bali Island, Indonesia

I Gusti Ngurah Putu Dharmayasa,

Cathleen Ariella Simatupang,

Doni Marisi Sinaga

2022

JIPE

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Rainfall data is critical for planning and research in the field of hydrology. Rainfall data must be available continuously, which means it must be recorded continuously. This recording will continue since numerous projects in the field of hydrology require continuous rainfall data. Although rainfall data are collected and recorded daily, some stations frequently have insufficient rainfall records, particularly in developing countries such as Bali, Indonesia. These issues may impair the quality of rainfall data, resulting in inaccuracies in the analysis results. To address this issue, we need a reliable source of rainfall data, one of which is NASA Power, which provides rainfall data for free. NASA Power rainfall data is then compared to observed rainfall data. The comparison of the two rainfalls is measured by a statistical parameter, namely the correlation coefficient. Based on the comparison between lowland and highland areas, the average daily rainfall from NASA Power tends to be lower than the average daily rainfall from observation stations. Meanwhile, from the correlation coefficient value (r) of the comparison of rainfall observations and NASA Power, a considerably high correlation coefficient value (> 0.7) was observed. Thus, it can be suggested that the rainfall data from NASA Power for hydrology research and planning activities in Bali Island, Indonesia.

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“…The administrative area of Cimanuk watershed extends to 4 regencies, namely Garut Regency, Sumedang Regency, Majalengka Regency, and Indramayu Regency. The Cimanuk River itself has a length of ± 338 km which can supply water needs of 2.2 billion m 3 every year with the main utilization for irrigation in agricultural areas (Rustiana et al, 2017;Pasandaran and Rosegrant 1999). Forest areas and their changes in the upper Cimanuk watershed affect the sustainability of overall water regulation in the watershed (Widiyanto and Hani, 2018).…”

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confidence: 99%

“…The concept of sustainable development is The Indonesian Journal of Development Planning Volume III No. 3 -December 2019 important for the sustainability of water resources management planning because it implies environmental boundaries determined by social organizations, the ability of the biosphere to accommodate human activities, and technology Cimanuk watershed concept as an ecosystem has not yet linked the mechanism of environmental services between upstream and downstream (Rustiana et al 2017;Corn 1993). Water scarcity due to damage to watershed ecosystems has the potential to cause conflicts both from an economic and social perspective because of conflicts of interest between users.…”

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confidence: 99%

Water Price Calculations in Concept Of Environmental Service: A Case in Cimanuk Watershed

Pambudi¹

2019

jpp

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Cimanuk Watershed is one of the important water sources in West Java Province. The damage that occurred in Cimanuk watershed affected the sustainability of water supply in West Java. The administrative area of Cimanuk watershed extends to 4 regencies, namely Garut Regency, Sumedang Regency, Majalengka Regency, and Indramayu Regency. The Cimanuk River itself has a length of ± 338 km, which can supply water needs of 2.2 billion m 3 every year with the main utilization for irrigation in agricultural areas. Forest areas in the upper Cimanuk watershed affect the continuity of the hydrological, erosion and sedimentation process. Changes in the upstream area in terms of land use and forest exploitation that do not consider environmental aspects can damage the entire watershed ecosystem, causing fluctuations in water flow, sediment transport, and material dissolved in the water flow system. Given the reciprocal relationship in the concept of watershed management, the implementation of the Payment Environmental Services or PES mechanism is important, where water is one of the components that deserve be a consideration. The economic valuation of water quantified as water prices is also a fundamental reason for the importance of PES studies. Water prices based on scientific calculations, both qualitative and quantitative, determine the "feasibility value" that will be given from the downstream community upstream as conservation actors to support the concept of fair environmental services. Quantitative analysis is carried out in the form of valuations involving several methods, namely the Contingent Valuation Method, Value of Marginal Product Water, and Full Cost Pricing. The price of water can be used as an indicator of the cost of forest environmental services as a water provider as well as improving market mechanisms. This paper concludes the mechanism of payment for environmental services (PES) through water pricing policies can be an alternative source of funding to improve the condition of a watershed.

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Rainfall prediction of Cimanuk watershed regions with canonical correlation analysis (CCA)

Cited by 6 publications

References 3 publications

Evaluation of regional climate model simulated rainfall over Indonesia and its application for downscaling future climate projections

Evaluation of regional climate model simulated rainfall over Indonesia and its application for downscaling future climate projections

NASA Power’s: an alternative rainfall data resources for hydrology research and planning activities in Bali Island, Indonesia

Water Price Calculations in Concept Of Environmental Service: A Case in Cimanuk Watershed

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