Hidayat Hidayat

@brin.go.id

Researcher at the Research Center for Limnology and Water Resources
National Research and Innnovation Agency

Hidayat Hidayat


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https://researchid.co/hidayat008

EDUCATION

PhD: Wageningen University
MSc: IHE Institute for Water Education
BSc: Pakuan University

RESEARCH, TEACHING, or OTHER INTERESTS

Water Science and Technology, Earth-Surface Processes, Geophysics, Multidisciplinary
20

Scopus Publications

928

Scholar Citations

12

Scholar h-index

14

Scholar i10-index

Scopus Publications

  • Tropical Peatland Hydrology Simulated With a Global Land Surface Model
    S. Apers, G. J. M. De Lannoy, A. J. Baird, A. R. Cobb, G. C. Dargie, J. del Aguila Pasquel, A. Gruber, A. Hastie, H. Hidayat, T. Hirano, A. M. Hoyt, A. J. Jovani‐Sancho, A. Katimon, A. Kurnain, R. D. Koster, M. Lampela, S. P. P. Mahanama, L. Melling, S. E. Page, R. H. Reichle, M. Taufik, J. Vanderborght, M. Bechtold
    Journal of Advances in Modeling Earth Systems, 2022
    Tropical peatlands are among the most carbon‐dense ecosystems on Earth, and their water storage dynamics strongly control these carbon stocks. The hydrological functioning of tropical peatlands differs from that of northern peatlands, which has not yet been accounted for in global land surface models (LSMs). Here, we integrated tropical peat‐specific hydrology modules into a global LSM for the first time, by utilizing the peatland‐specific model structure adaptation (PEATCLSM) of the NASA Catchment Land Surface Model (CLSM). We developed literature‐based parameter sets for natural (PEATCLSMTrop,Nat) and drained (PEATCLSMTrop,Drain) tropical peatlands. Simulations with PEATCLSMTrop,Nat were compared against those with the default CLSM version and the northern version of PEATCLSM (PEATCLSMNorth,Nat) with tropical vegetation input. All simulations were forced with global meteorological reanalysis input data for the major tropical peatland regions in Central and South America, the Congo Basin, and Southeast Asia. The evaluation against a unique and extensive data set of in situ water level and eddy covariance‐derived evapotranspiration showed an overall improvement in bias and correlation compared to the default CLSM version. Over Southeast Asia, an additional simulation with PEATCLSMTrop,Drain was run to address the large fraction of drained tropical peatlands in this region. PEATCLSMTrop,Drain outperformed CLSM, PEATCLSMNorth,Nat, and PEATCLSMTrop,Nat over drained sites. Despite the overall improvements of PEATCLSMTrop,Nat over CLSM, there are strong differences in performance between the three study regions. We attribute these performance differences to regional differences in accuracy of meteorological forcing data, and differences in peatland hydrologic response that are not yet captured by our model.
  • Observation of Floating Inorganic Macro-debris in the Downstream Citarum River using Manual Counting
    S Aisyah, H Hidayat, A Rahmadya, S Husrin, R Hurley, M Olsen
    Iop Conference Series Earth and Environmental Science, 2022
    Inorganic Macro-debris (IMD) such as plastics can negatively affect aquatic life and human wellbeing. Information about IMD transport in river systems is required to optimize prevention, mitigation, and reduction strategies. However, this data is currently lacking. Manual counting technique can be used to quantify and characterize macro-debris contamination and its transport in rivers. We demonstrate how this method can provide a rapid and cost-effective tool for characterization and quantification of floating macro-debris. This study aims to quantify the abundance of IMD, explore the spatio-temporal trends, and identify the composition of floating IMD in the downstream section of the Citarum River, West Java, Indonesia. Data collection was carried out in March and May 2021. Observations were performed between 8 AM and 5 PM across the whole river width across several days. Results showed that IMD transport varies between days, ranging from 60 to 350 pieces in March and 40 to 4700 IMD pieces per day in May. The magnitude of macro-debris is correlated with precipitation (r = 0.793 and 0.622 for March and May, respectively). Spatially, concentration of macro-debris fluxes was observed close to river shores across the channel widths. The most frequent IMD category observed in March and May 2021 was Polystyrene (60% to 70%).
  • Quantification of Riverbank Macroplastic Contamination in the Lower Citarum River
    H Hidayat, S Aisyah, A Rahmadya, S Husrin, I S Hermana, R Hurley, M Olsen
    Iop Conference Series Earth and Environmental Science, 2022
    Plastic waste generation has been increasing over the last decades. Rivers represent complex environments where plastics may be stored and remobilized. Studies on riverine plastic, including riverbank contamination, are still lacking. Riverbank surveys were carried out in the Citarum River, Indonesia, at three river sections in Purwakarta, Karawang, and Muara Gembong in March-April 2021. The aim was to quantify the abundance of plastic waste at different points in the riverbank zone. The sample ‘monolith’ was taken by digging a quadrat of 30x30x10 cm3. All material was then weighed. Three replicates along the length of the bank and three replicates across the bank were taken. The non-plastic fraction was weighed and its composition was estimated. Plastic fraction was classified into categories, counted, and weighed. The result show that plastic litter was found in all monolith ranging from 0.7-301 g of plastic litter per monolith. The largest proportion of plastic contaminant was found in Karawang with 2.85% of plastic in a single monolith and the largest average plastic contaminant was about 0.78% of the total monolith weight, showing that plastic contamination is prevalent. Enhancing waste management, reducing single-use plastics, and plastic recycling are recommended to tackle plastic contamination in the study area.
  • Riverine Plastic Monitoring during the Rainy Season in the Citarum Estuary of Muara Gembong
    S Husrin, H Hidayat, A Rahmadya, S Aisyah, R Hurley, H F V Braaten, M Olsen
    Iop Conference Series Earth and Environmental Science, 2022
    The restoration effort to clean up the river, known as “Citarum Harum” requires monitoring to estimate both the composition and the volumes of plastic pollution. The objective of the monitoring is to obtain a scientific baseline of marine plastics from Citarum River as a function of other influencing aspects. A static net trawl (60 m x 10 m, mesh size 2.5 cm, and about 1 meter submerged) was installed under the New Muara Gembong Bridge for eight consecutive days in March and April 2021 or during the rainy season. The trapped debris was collected manually into boxes using two boats and simple tools. After the drying, weighting, classification processes and by excluding natural organics (leaves/branches), plastics contributed as the most dominant for both abundance (83%) and weight (31%) followed by textiles, hazardous materials, construction materials and rubbers. The hydrological conditions as well as the tides were also observed to be one of dominant parameters. The quantification of macro-plastic litter transport from River Citarum into the Java Sea is also an aim for the ASEANO project (ASEAN – Norway cooperation project on local capacity building for reducing plastic pollution in the ASEAN region).
  • Statistical Assessment of Some Water Quality and Rainfall Data in Ciliwung River, Indonesia
    S Aisyah, H Hidayat, D Verawati
    Iop Conference Series Earth and Environmental Science, 2022
    Ciliwung is the river that flows from upstream in the Puncak area of Bogor Regency to Jakarta Bay. Water quality parameters have been monitored each month at three stations in the Ciliwung River watershed by the Indonesian Ministry of Environmental and Forestry and Meteorological, Climatological, and Geophysical Agency. The data analyzed in this study are rainfall and water quality data for the period 2017-2020 with water quality variables including pH, temperature, Dissolved Oxygen (DO), electrical conductivity (EC), Turbidity, Total Dissolved Solids (TDS), and Nitrate-N. This paper aimed to analyze the time series data using statistical methods and describes certain chemical parameters and rainfall data, that show Ciliwung water quality during 2017-2020. Descriptive analysis was used to determine the mean, skewness, and kurtosis values based on time and location. Histogram and boxplot graphs were used to describe distribution of the data set. Test of Kolmogorov-Smirnov was used to evaluate the normality of the data set. The descriptive analysis resulted in the mean of each water quality parameter showing a value that did not show a significant difference between observation locations except for the TDS parameter. From the histogram and boxplot graphs, it can be seen that the data shows an abnormal distribution and there are many outliers. Kolmogorov-Smirnov test resulted in better normality of data distribution. The main problem of pollution is the use of oxygen by organic matter contained in river water. Ciliwung River downstream was changed into open accumulator wastewater from the food industry, livestock, and settlements.
  • Plastic Pollution Research in Indonesia: State of Science and Future Research Directions to Reduce Impacts
    Paul Vriend, H. Hidayat, J. van Leeuwen, M. R. Cordova, N. P. Purba, A. J. Löhr, I. Faizal, N. S. Ningsih, K. Agustina, S. Husrin, D. D. Suryono, I. Hantoro, B. Widianarko, P. Lestari, B. Vermeulen, Tim van Emmerik
    Frontiers in Environmental Science, 2021
    Several studies have suggested Indonesia to be among the top plastic polluting countries globally. Data on the presence and amounts of plastic pollution are required to help design effective plastic reduction and mitigation strategies. Research quantifying plastic pollution in Indonesia has picked up in recent years. However, a lack of central coordination in this research has led to research output with different goals, methods, and data formats. In this study we present a meta-analysis of studies published on plastic pollution in Indonesia to uncover gaps and biases in current research, and to use these insights to suggest ways to improve future research to fill these gaps. Research gaps and biases identified include a clear preference for marine research, and a bias toward certain environmental compartments within the marine, riverine, and terrestrial systems that have easy to apply methods. Units of measurement used to express results vary greatly between studies, making it difficult to compare data effectively. Nevertheless, we identify polypropylene (PP) and polyethylene variants (PE, HDPE, LDPE) to be among the most frequently found polymers in both macro- and microplastic pollution in Indonesia, though polymer identification is lacking in a large part of the studies. Plastic research is mostly done on Java (59% of the studies). We recommend research methods used to quantify plastic pollution to be harmonized. Moreover, we recommend a shift in focus of research toward the riverine and terrestrial environments and a shift of focus of environmental compartments analyzed within these systems, an increase in spatial coverage of research across Indonesia, and lastly, a larger focus on polymer characterization. With these changes we envision future research which can aid with the design of more effective and targeted reduction and mitigation strategies.
  • Loads of Pollution to Lake Toba and Their Impacts
    - Lukman, H. Hidayat, Luki Subehi, Rahmi Dina, Novi Mayasari, Irma Melati, Yuli Sudriani
    International Journal on Advanced Science Engineering and Information Technology, 2021
    Lakes provide various ecosystem services that support biotic habitats and human life. In contrast, many lakes in the world are degraded due to pollutant supply from surrounding areas and human activities in the lake. Lake Toba, which is the largest lake in Indonesia, has indicated a polluted condition. However, the source and load of each pollutant are not yet known. A study has been conducted to determine nutrient and organic load levels entering the lake represented by Total Phosphorus (TP) and Chemical Oxygen Demand (COD), respectively. Observations were carried out in November 2017 at 22 locations, i.e., at 12 inlet rivers debouching to the lake and 10 sites at the lake. The pollutant impact was assessed from water class criteria based on COD, waters trophic status based on TP, and vertical oxygen profile representing cage aquaculture (CA) and non-cage aquaculture (NCA) areas. Based on COD and government regulation number 82/2001, water quality at the lake inlets was class III and IV. In the lake area, water class in NCA was III, while in CA the water class tends to be III and IV. Estimated TP loading from the catchment area was 138 tonnes/yr, while that from cage aquaculture activity was 570.33 tonnes/yr. Pollutants have caused the worsening of water class, increasing water column anoxia in the hypolimnion layer and eutrophication in Lake Toba.
  • Trend of rainfall over Indonesian major lakes from tropical rainfall measuring mission data
    Hidayat
    Iop Conference Series Earth and Environmental Science, 2019
    Establishing patterns of natural variability of water resources in lakes is important for water management. However, the availability of reliable data often becomes obstacles, especially in ungauged regions. Rainfall products from Tropical Rainfall Measuring Mission (TRMM) potentially fill this gap. The aim of this study is to assess the trend of rainfall over Indonesian major lakes using TRMM rainfall estimates to investigate the natural variability of rainfall over the lakes. TRMM 3B43 monthly data over the period of 1998–2017 obtained from Giovanni data portal maintained by NASA were used to assess the trend of rainfall over Indonesian major lakes. Rainfall correlation with El Niño-Southern Oscillation (ENSO) variability was also investigated using Southern Oscillation Index (SOI) and Multivariate ENSO Index (MEI). Trend analysis was carried out using Mann-Kendall test. Rainfall depths over Lake Laut Tawar in Sumatra tend to gradually decline, which is confirmed by the Mann-Kendall test. Result of the test of rainfall over all other investigated lakes on Kalimantan, Sulawesi, Papua, and Java indicate no trends except for that of Lake Paniai on Papua, which indicates an increasing trend.
  • Pollution loads and its impact on Lake Toba
    L Lukman, Hidayat, L Subehi, R Dina, N Mayasari, I Melati, Y Sudriani, D Ardianto
    Iop Conference Series Earth and Environmental Science, 2019
    Human activities in Lake Toba area have contributed to the supply of pollutant on these aquatic ecosystems. Organic material and nutrient especially phosphorus component is estimated to be quite dominant of pollutant load. This study aims to recognize the level of organic load (in the form of Chemical Oxygen Demand; COD) and nutrient components (Total Phosphorus; TP) and its influence on the aquatic environment condition. This research was conducted in Lake Toba in November 2017, by observing selected locations in several inlet rivers of the lake and the lake waters area. The pollutant load from the land area, which is organic material (in the form of COD) reaches 90,712 tons/year, while the nutrient load (in the form of TP) reaches 138 tons/year. From aquaculture activities, organic loads released into the waters (in the form of feces and uneaten feed) are estimated at 14,265.4 tons/year, while the phosphorus load (in the form of TP) is 570.33 tons/year. The phosphorus load that enters the waters of Lake Toba as a whole has exceeded the permissible loading levels and changed the trophic status of the Lake Toba waters. Meanwhile, the organic pollutant load will increase the anoxic column on the hypolimnion area of the lake.
  • Hydrology of inland tropical lowlands: The Kapuas and Mahakam wetlands
    Hidayat Hidayat, Adriaan J. Teuling, Bart Vermeulen, Muh Taufik, Karl Kastner, Tjitske J. Geertsema, Dinja C. C. Bol, Dirk H. Hoekman, Gadis Sri Haryani, Henny A. J. Van Lanen, Robert M. Delinom, Roel Dijksma, Gusti Z. Anshari, Nining S. Ningsih, Remko Uijlenhoet, Antonius J. F. Hoitink
    Hydrology and Earth System Sciences, 2017
    Wetlands are important reservoirs of water, carbon and biodiversity. They are typical landscapes of lowland regions that have high potential for water retention. However, the hydrology of these wetlands in tropical regions is often studied in isolation from the processes taking place at the catchment scale. Our main objective is to study the hydrological dynamics of one of the largest tropical rainforest regions on an island using a combination of satellite remote sensing and novel observations from dedicated field campaigns. This contribution offers a comprehensive analysis of the hydrological dynamics of two neighbouring poorly gauged tropical basins; the Kapuas basin (98 700 km2) in West Kalimantan and the Mahakam basin (77 100 km2) in East Kalimantan, Indonesia. Both basins are characterised by vast areas of inland lowlands. Hereby, we put specific emphasis on key hydrological variables and indicators such as discharge and flood extent. The hydroclimatological data described herein were obtained during fieldwork campaigns carried out in the Kapuas over the period 2013–2015 and in the Mahakam over the period 2008–2010. Additionally, we used the Tropical Rainfall Measuring Mission (TRMM) rainfall estimates over the period 1998–2015 to analyse the distribution of rainfall and the influence of El-Niño – Southern Oscillation. Flood occurrence maps were obtained from the analysis of the Phase Array type L-band Synthetic Aperture Radar (PALSAR) images from 2007 to 2010. Drought events were derived from time series of simulated groundwater recharge using time series of TRMM rainfall estimates, potential evapotranspiration estimates and the threshold level approach. The Kapuas and the Mahakam lake regions are vast reservoirs of water of about 1000 and 1500 km2 that can store as much as 3 and 6.5 billion m3 of water, respectively. These storage capacity values can be doubled considering the area of flooding under vegetation cover. Discharge time series show that backwater effects are highly influential in the wetland regions, which can be partly explained by inundation dynamics shown by flood occurrence maps obtained from PALSAR images. In contrast to their nature as wetlands, both lowland areas have frequent periods with low soil moisture conditions and low groundwater recharge. The Mahakam wetland area regularly exhibits low groundwater recharge, which may lead to prolonged drought events that can last up to 13 months. It appears that the Mahakam lowland is more vulnerable to hydrological drought, leading to more frequent fire occurrences than in the Kapuas basin.
  • Simulations of the flow in the Mahakam river–lake–delta system, Indonesia
    Chien Pham Van, Benjamin de Brye, Eric Deleersnijder, A. J. F. Hoitink, Maximiliano Sassi, Benoit Spinewine, Hidayat Hidayat, Sandra Soares-Frazão
    Environmental Fluid Mechanics, 2016
  • Satellite radar altimetry for monitoring small rivers and lakes in Indonesia
    Y. B. Sulistioadi, K.-H. Tseng, C. K. Shum, H. Hidayat, M. Sumaryono, A. Suhardiman, F. Setiawan, S. Sunarso
    Hydrology and Earth System Sciences, 2015
  • Prediction of discharge in a Tidal river using artificial neural networks
    H. Hidayat, A. J. F. Hoitink, M. G. Sassi, P. J. J. F. Torfs
    Journal of Hydrologic Engineering, 2014
  • Sharp bends associated with deep scours in a tropical river: The river Mahakam (East Kalimantan, Indonesia)
    B. Vermeulen, A. J. F. Hoitink, S. W. van Berkum, H. Hidayat
    Journal of Geophysical Research Earth Surface, 2014
  • Sediment discharge division at two tidally influenced river bifurcations
    M. G. Sassi, A. J. F. Hoitink, B. Vermeulen, H. Hidayat
    Water Resources Research, 2013
  • Suspended sediment load in the tidal zone of an Indonesian river
    F. A. Buschman, A. J. F. Hoitink, S. M. de Jong, P. Hoekstra, H. Hidayat, M. G. Sassi
    Hydrology and Earth System Sciences, 2012
  • Flood occurrence mapping of the middle Mahakam lowland area using satellite radar
    H. Hidayat, D. H. Hoekman, M. A. M. Vissers, A. J. F. Hoitink
    Hydrology and Earth System Sciences, 2012
  • Discharge estimation in a backwater affected meandering river
    H. Hidayat, B. Vermeulen, M. G. Sassi, P. J. J. F. Torfs, A. J. F. Hoitink
    Hydrology and Earth System Sciences, 2011
  • Discharge estimation from H-ADCP measurements in a tidal river subject to sidewall effects and a mobile bed
    M. G. Sassi, A. J. F. Hoitink, B. Vermeulen, Hidayat
    Water Resources Research, 2011
  • Combining semi-distributed process-based and data-driven models in flow simulation: A case study of the Meuse river basin
    G. A. Corzo, D. P. Solomatine, , M. de Wit, M. Werner, S. Uhlenbrook, R. K. Price
    Hydrology and Earth System Sciences, 2009

RECENT SCHOLAR PUBLICATIONS

  • Riverine Plastic Monitoring during the Rainy Season in the Citarum Estuary of Muara Gembong
    S Husrin, H Hidayat, A Rahmadya, S Aisyah, R Hurley, HFV Braaten, ...
    IOP Conference Series: Earth and Environmental Science 950 (1), 012059 , 2022
    2022
    Citations: 5
  • Quantification of Riverbank Macroplastic Contamination in The Lower Citarum River
    H Hidayat, S Aisyah, A Rahmadya, S Husrin, IS Hermana, R Hurley, ...
    IOP Conference Series: Earth and Environmental Science 950 (1), 012010 , 2022
    2022
    Citations: 12
  • Observation of Floating Inorganic Macro-debris in The Downstream Citarum River using Manual Counting
    S Aisyah, H Hidayat, A Rahmadya, S Husrin, R Hurley, M Olsen
    IOP Conference Series: Earth and Environmental Science 950 (1), 012011 , 2022
    2022
    Citations: 4
  • Plastic pollution research in Indonesia: state of science and future research directions to reduce impacts
    P Vriend, H Hidayat, J van Leeuwen, MR Cordova, NP Purba, AJ Löhr, ...
    Frontiers in Environmental Science 9 , 2021
    2021
    Citations: 107
  • Extending the PEATCLSM Framework to Tropical Peatlands: Model Evaluation for the Major Tropical Peatland Areas
    S Apers, M Bechtold, AJ Baird, A Cobb, GC Dargie, H Hidayat, T Hirano, ...
    AGU Fall Meeting 2020 , 2020
    2020
    Citations: 1
  • Trend of rainfall over Indonesian major lakes from tropical rainfall measuring mission data
    Hidayat
    IOP Conference Series: Earth and Environmental Science 303, 1-10 , 2019
    2019
    Citations: 1
  • Hydrology of inland tropical lowlands: the Kapuas and Mahakam wetlands
    H Hidayat, AJ Teuling, B Vermeulen, M Taufik, K Kastner, TJ Geertsema, ...
    Hydrology and Earth System Sciences 21 (5), 2579 , 2017
    2017
    Citations: 61
  • Estimating lake extent and water volume of floodplain lakes of Kalimantan using radar images
    H Hidayat, DH Hoekman, AJ Teuling, GS Haryani, AJF Hoitink
    Editors, 178 , 2017
    2017
    Citations: 1
  • Simulations of the flow in the Mahakam river–lake–delta system, Indonesia
    CP Van, B de Brye, E Deleersnijder, AJF Hoitink, M Sassi, B Spinewine, ...
    Environmental Fluid Mechanics 16 (3), 603-633 , 2016
    2016
    Citations: 40
  • Satellite radar altimetry for monitoring small rivers and lakes in Indonesia.
    YB Sulistioadi, KH Tseng, CK Shum, H Hidayat, M Sumaryono, ...
    Hydrology & Earth System Sciences 19 (1) , 2015
    2015
    Citations: 166
  • Reconstructing Disrupted Water Level Records in A Tide Dominated Region Using Data Mining Technique
    H Hidayat, F Setiawan, U Handoko
    Indonesian Journal of Geospatial 3 (2), 9-16 , 2014
    2014
    Citations: 1
  • Autogenic Scour and Channel Widening in Sharp Bends of the River Mahakam
    T Hoitink, B Vermeulen, S van Berkum, H Hidayat, RJ Labeur
    AGU Fall Meeting Abstracts , 2014
    2014
  • Satellite Altimetry and Hydrologic Modeling of Poorly-Gauged Upper Mahakam Sub-Watershed in Indonesia
    YB Sulistioadi, CK Shum, MF Jasinski, H Hidayat
    AGU Fall Meeting Abstracts , 2014
    2014
  • Sharp bends associated with deep scours in a tropical river: The river Mahakam (East Kalimantan, Indonesia)
    B Vermeulen, AJF Hoitink, SW Van Berkum, H Hidayat
    Journal of Geophysical Research: Earth Surface 119 (7), 1441-1454 , 2014
    2014
    Citations: 55
  • Satellite radar altimetry for monitoring small river and lakes in Indonesia
    YB Sulistioadi, KH Tseng, CK Shum, H Hidayat, M Sumaryono, ...
    Hydrol Earth Syst Sci Discuss 11, 2825-2874 , 2014
    2014
    Citations: 10
  • Prediction of Discharge in a Tidal River Using Artificial Neural Networks
    H Hidayat, AJF Hoitink, MG Sassi, P Torfs
    Journal of Hydrologic Engineering 19 (8), 04014006 , 2014
    2014
    Citations: 62
  • Wide area forest monitoring in Insular SE Asia and Guiana Shield
    DH Hoekman, MAM Vissers, MJ Quinones, H Hidayat, J Reiche
    ALOS , 2014
    2014
  • Sediment discharge division at two tidally influenced river bifurcations
    MG Sassi, AJF Hoitink, B Vermeulen, H Hidayat
    Water Resources Research 49 (4), 2119-2134 , 2013
    2013
    Citations: 57
  • Runoff, discharge and flood occurrence in a poorly gauged tropical basin: the Mahakam River, Kalimantan
    H Hidayat
    2013
    Citations: 4
  • Sediment discharge division at two tidally influenced river bifurcations
    T Hoitink, M Sassi, B Vermeulen, H Hidayat
    AGU Fall Meeting Abstracts , 2012
    2012

MOST CITED SCHOLAR PUBLICATIONS

  • Satellite radar altimetry for monitoring small rivers and lakes in Indonesia.
    YB Sulistioadi, KH Tseng, CK Shum, H Hidayat, M Sumaryono, ...
    Hydrology & Earth System Sciences 19 (1) , 2015
    2015
    Citations: 166
  • Plastic pollution research in Indonesia: state of science and future research directions to reduce impacts
    P Vriend, H Hidayat, J van Leeuwen, MR Cordova, NP Purba, AJ Löhr, ...
    Frontiers in Environmental Science 9 , 2021
    2021
    Citations: 107
  • Discharge estimation in a backwater affected meandering river
    H Hidayat, B Vermeulen, MG Sassi, P Torfs, AJF Hoitink
    Hydrology and earth system sciences 15 (8), 2717 , 2011
    2011
    Citations: 104
  • Discharge estimation from H‐ADCP measurements in a tidal river subject to sidewall effects and a mobile bed
    MG Sassi, AJF Hoitink, B Vermeulen, H Hidayat
    Water Resources Research 47 (6) , 2011
    2011
    Citations: 90
  • Prediction of Discharge in a Tidal River Using Artificial Neural Networks
    H Hidayat, AJF Hoitink, MG Sassi, P Torfs
    Journal of Hydrologic Engineering 19 (8), 04014006 , 2014
    2014
    Citations: 62
  • Hydrology of inland tropical lowlands: the Kapuas and Mahakam wetlands
    H Hidayat, AJ Teuling, B Vermeulen, M Taufik, K Kastner, TJ Geertsema, ...
    Hydrology and Earth System Sciences 21 (5), 2579 , 2017
    2017
    Citations: 61
  • Sediment discharge division at two tidally influenced river bifurcations
    MG Sassi, AJF Hoitink, B Vermeulen, H Hidayat
    Water Resources Research 49 (4), 2119-2134 , 2013
    2013
    Citations: 57
  • Combining semi-distributed process-based and data-driven models in flow simulation: a case study of the Meuse river basin
    GA Corzo, DP Solomatine, H Hidayat, M Wit, M Werner, S Uhlenbrook, ...
    Hydrology and Earth System Sciences 13 (9), 1619-1634 , 2009
    2009
    Citations: 56
  • Sharp bends associated with deep scours in a tropical river: The river Mahakam (East Kalimantan, Indonesia)
    B Vermeulen, AJF Hoitink, SW Van Berkum, H Hidayat
    Journal of Geophysical Research: Earth Surface 119 (7), 1441-1454 , 2014
    2014
    Citations: 55
  • Simulations of the flow in the Mahakam river–lake–delta system, Indonesia
    CP Van, B de Brye, E Deleersnijder, AJF Hoitink, M Sassi, B Spinewine, ...
    Environmental Fluid Mechanics 16 (3), 603-633 , 2016
    2016
    Citations: 40
  • Flood occurence mapping of the middle Mahakam lowland area using satelite radar
    H Hidayat, DH Hoekman, MAM Vissers, AJF Hoitink
    Hydrology and Earth System Sciences 16, 1805-1816 , 2012
    2012
    Citations: 39
  • Suspended sediment load in the tidal zone of an Indonesian river
    FA Buschman, AJF Hoitink, SM De Jong, P Hoekstra, H Hidayat, ...
    Hydrology and Earth System Sciences 16, 4191-4204 , 2012
    2012
    Citations: 35
  • Quantification of Riverbank Macroplastic Contamination in The Lower Citarum River
    H Hidayat, S Aisyah, A Rahmadya, S Husrin, IS Hermana, R Hurley, ...
    IOP Conference Series: Earth and Environmental Science 950 (1), 012010 , 2022
    2022
    Citations: 12
  • Satellite radar altimetry for monitoring small river and lakes in Indonesia
    YB Sulistioadi, KH Tseng, CK Shum, H Hidayat, M Sumaryono, ...
    Hydrol Earth Syst Sci Discuss 11, 2825-2874 , 2014
    2014
    Citations: 10
  • Riverine Plastic Monitoring during the Rainy Season in the Citarum Estuary of Muara Gembong
    S Husrin, H Hidayat, A Rahmadya, S Aisyah, R Hurley, HFV Braaten, ...
    IOP Conference Series: Earth and Environmental Science 950 (1), 012059 , 2022
    2022
    Citations: 5
  • Observation of Floating Inorganic Macro-debris in The Downstream Citarum River using Manual Counting
    S Aisyah, H Hidayat, A Rahmadya, S Husrin, R Hurley, M Olsen
    IOP Conference Series: Earth and Environmental Science 950 (1), 012011 , 2022
    2022
    Citations: 4
  • Runoff, discharge and flood occurrence in a poorly gauged tropical basin: the Mahakam River, Kalimantan
    H Hidayat
    2013
    Citations: 4
  • Combining ALOS-PALSAR imagery with field water level measurements for flood mapping of a tropical floodplain
    H Hidayat, DH Hoekman, MAM Vissers, AJF Hoitink
    International Symposium on Lidar and Radar Mapping 2011: Technologies and … , 2011
    2011
    Citations: 4
  • MODELLING OF SALINITY DISTRIBUTION AND WATER AGE IN THE MAHAKAM DELTA, INDONESIA
    C Pham Van, B de Brye, S Soares Frazao, E Deleersnijder, T Hoitink, ...
    4th International Conference on Estuaries and Coasts-ICEC 2012 , 2012
    2012
    Citations: 3
  • Tidal impact on river discharge in the Mahakam River and distributary channels, East Kalimantan, Indonesia
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    Proceedings of the 15th Physics of Estuaries and Coastal Seas (PECS … , 2010
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    Citations: 3