scholarly journals Perancangan Sistem Deteksi Dini Bencana Banjir Menggunakan Teknik Pengiriman DTMF Berbasis Modul RF 433 Mhz Dan Arduino

2020 ◽  
Vol 8 (2) ◽  
Author(s):  
M. Zainal Arifin ◽  
Ema Utami ◽  
Eko Pramono
Keyword(s):  
Early Detection ◽  
Natural Disasters ◽  
Water Level ◽  
River Water ◽  
Rainy Season ◽  
Short Message ◽  
Radio Waves ◽  
Level Information ◽  
Internet Networks ◽  
Normal Status

Flood is one of the unpredictable natural disasters, especially in the rainy season. There are many effects for many people, such as they lose their property and sometimes have many victims due to floods. So that, estimation of water level is important to detect the basic risk of flooding. In this study used the Water Level (TMA) in form of a short message technique which is can be sent from radio waves and river water level sensors. The value of the sensors to know the highest river water level itself, so it does not need signals, internet networks and also pulse for it. The final result of this study is the water level information which is normal status, standby I, standby II, standby III or standby IV.Keywords: RF 433MHz, Flood, Arduino, Early Detection

scholarly journals Analysis of Ciliwung river flood debit and city flood anticipation using floods early detection system (FEDS)

2022 ◽  
Vol 955 (1) ◽  
pp. 012011
Author(s):  
A W Biantoro ◽  
S I Wahyudi ◽  
M F Niam ◽  
A G Mahardika
Keyword(s):  
Early Detection ◽  
Water Level ◽  
River Water ◽  
Return Period ◽  
Early Warning ◽  
Research Method ◽  
Detection System ◽  
Prototype Tool ◽  
Flood Discharge ◽  
River Flood

Abstract This research is based on flood conditions that often occur in lowland areas such as Jakarta and Semarang. The problem faced is that the notification and early detection of floods is often late, done manually so that it cannot be anticipated by areas downstream of the river. Therefore, it is very important to be able to develop an IoT-based early warning tool so that floods can be detected early in a fast, real time, and immediately anticipated in the upstream area of the river. This research method uses design methods and experiments carried out in the field and laboratory. This research will present a prototype of the FEDS (Floods Early Detection System), based on the Blynk application. The results showed that the calculation of planned flood discharge with a return period of 2, 5, 10, 25 and 50 years can provide an overview of the ability of an area to face the maximum possible rainfall. The FEDS prototype tool, with the Blynk application, can work well using a microcontroller, ultra sonic sensor, and a rainfall sensor. This system is suitable for use in the community to determine rain conditions and water level conditions used at river water level conditions, for early notification of floods.

scholarly journals Prototype Pengukur Tinggi Rendah Permukaan & Arus Air Hulu Sungai Lematang Memprediksi Banjir Di Hilir Lematang

2021 ◽  
Vol 11 (2) ◽  
pp. 112-118
Author(s):  
Buhori Muslim
Keyword(s):  
Water Level ◽  
River Water ◽  
Short Message Service ◽  
System Development ◽  
Current Strength ◽  
Short Message ◽  
Application Development ◽  
Development Method ◽  
Rapid Application Development ◽  
Message Service

The purpose of this research is to produce a prototype of measuring the flow and height of river water that can help to find out in monitoring the flow and height of river water remotely by using SMS (Short Message Service) on the cellphone. So that it can anticipate before the occurrence of catastrophic floods caused by the height and flow of the river that exceeds the limit. The device used to build a flow meter and river water level with an arduino-based SMS Gateway is a GSM module, Ultrasonic sensor, Water Flow sensor, arduino uno and an arduino IDE application that functions to include programs on arduino The system development method in this research is the RAD method (Rapid) Application Development) and the stages are requirements planning, design workshops and implementation. The way it works on this system is that if the user sends an SMS to the device, the tool will provide information on the strength of the flow and height of the river water using the SMS Gateway facility and the user can find out the information about the current strength and height of the river water via SMS contained on the handphone.

scholarly journals The effect of water level in vertical aquaculture systems on production performance, biochemistry, hematology, and histology of Anguilla bicolor bicolor

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Eko Harianto ◽  
Eddy Supriyono ◽  
Tatag Budiardi ◽  
Ridwan Affandi ◽  
Yani Hadiroseyani
Keyword(s):  
Water Level ◽  
Normal Values ◽  
Stocking Density ◽  
Water Levels ◽  
Production Performance ◽  
Fish Weight ◽  
Important Study ◽  
Level Information ◽  
Gill Filaments ◽  
Skin Epidermis

AbstractThe water level in the cultivation of eel (Anguilla bicolor bicolor) is an important study in order to provide the optimal water level for cultivation. Optimizing the water level will affect the substitution of respiration energy with energy to grow. In addition, the water level information is related to the efficiency of water use for eel production in the future. Information on water level for eel production is still very limited, so this research is necessary to do. A total of 120 eel elver (initial weight 13.66 ± 0.09 g) were collected from eel companies in Bogor City, Indonesia. Fish were reared in vertical aquaculture systems with a stocking density of 10 fish per container for 60 days. The artificial feed containing 55% protein given as much as 3–5% of the biomass. Absorption and water replacement were done 20% per day. The result of this research showed that fish weight increased with an average of 33.45 ± 0.33 g. Different water levels had an impact to KKb, SGOT, ALP, and He. There was erosion of the skin epidermis and necrosis of the gill filaments due to the adaptation process. Water quality was within the optimum range for all treatments and 1.5 cm water level is recommended for maintenance (SGOT, ALP and He values were closest to normal values).

Swing Operation Envelope of River-Sourced Water Treatment Facility for Water Injection Purpose in Banyu Urip Field

2021 ◽  
Author(s):  
Muhammad Amin Rois ◽  
Willy Dharmawan
Keyword(s):  
Water Treatment ◽  
River Water ◽  
Rainy Season ◽  
Treatment Cost ◽  
Water Injection ◽  
Injection Rate ◽  
Raw Water ◽  
Treatment Facility ◽  
Water Parameters ◽  
Water Basin

Abstract Banyu Urip reservoir management heavily rely on river-sourced water as water injection to meet Voidage Replacement Ratio target of 1. The treatment facility which consist of Raw Water Basin, Clarifiers, Multi Media Fine (MMF) Filters and Cartridge Filters, is sensitive to seasonal transition and river condition. This paper shares lesson learnt in operating such facility and troubleshooting guidance to overcome challenges of high turbidity during rainy season and lack of river water volume during drought season. To maintain the design intent of Banyu Urip (BU) water treatment facility in achieving water injection quality and quantity at reasonable cost, following activities were undertaken: [1] Critical water parameters data gathering & analysis across each unit; [2] Clarifier Chemical injection dosage verification based on laboratory test; [3] MMF Media coring inspection to assess the filtering media condition; [4] MMF Filters backwash parameters optimization; [5] MMF Filter on-off valve sequencing optimization to address water hammering issue; [6] Water injection rate management to deal with river water source availability along the year. Critical water parameters analysis revealed that chemical dosages were in-adequate to treat the five times higher turbidity coming into Clarifiers during early rain 2019. On top of this, low Raw Water Basin level at the end of long drought further contributed to jeopardize Clarifier's operation. Although in-adequate chemicals injection was resolved at early 2020, the treatment cost remained high, especially on filtration section. Media coring result on MMF Filters confirmed that the filtering media have been poisoned by carried-over mud from Clarifiers during upset. The operation of MMF Filters required extensive optimization on backwash parameters to successfully recover the MMF Filters performance without media replacement. Latest media coring on the worst MMF Filter showed that there was no more top mud layer and the amount of trapped mud had been decreased significantly. Cartridge Filter replacement interval was improved from 38 hours to 186 hours, therefore water treatment cost dropped with quite significant margin. Additionally, the availability of each MMF Filters was also improved. At the same time, the high water injection rate during 2020 rainy season, had successfully increased reservoir pressure buffer up to its maximum point as the anticipation of prolonged drought season. This paper provides the troubleshooting guidance for MMF Filter application in season-prone water treatment facility including insights on interpretation of media coring result and linking it back to optimization strategy on the MMF Filters drain down time for effective backwash process without having excessive media loss.

Temporal partitioning of reproductive activity in a neotropical anuran community

2004 ◽  
Vol 20 (3) ◽  
pp. 271-280 ◽  
Author(s):  
Brigitte Gottsberger ◽  
Edith Gruber
Keyword(s):  
Water Level ◽  
Rainy Season ◽  
Abiotic Factors ◽  
Reproductive Mode ◽  
Reproductive Activity ◽  
Active Species ◽  
South American ◽  
Wet Season ◽  
Breeding Sites ◽  
Calling Activity

The phenology of calling activity and reproduction of a neotropical anuran community in French Guiana was studied during one rainy season. We investigated the correlation between calling activity, rainfall, temperature and water level in two ponds and recorded the occurrence of tadpoles of pond-breeding species. The study site contained 31 calling frog species, which were divided into groups according to reproductive mode. Increased rainfall was associated with increased reproductive activity in all groups, but temporal patterns in calling activity varied significantly between groups. Species with aquatic oviposition exhibited sporadic acoustic activity, aggregating into explosive breeding events following heavy rainfall. Species laying eggs in foam nests had the peak of calling activity at the start of the rainy season. Taxa with embryonic development on vegetation called mainly from middle to late wet season, being the only group which showed a significant correlation of calling with increasing water level. Dendrobatids with terrestrial oviposition and subsequent parental tadpole transportation were continuously active. Species with direct development or with non-feeding larvae were mainly active at the beginning of the rainy season. It is concluded that phenologies of calling activity in South American tropical anuran species are strongly influenced by abiotic factors like rainfall and availability of breeding sites. The temporal limitation of the rainy season forces species to adjust calling and reproductive activity according to their reproductive modes.

scholarly journals AN ARCHITECTURAL ADAPTATION STRATEGY FOR THE DYNAMICS OF THE KAHAYAN RIVER’S WATER LEVEL AT KAMPUNG PAHANDUT, PALANGKA RAYA CITY

2017 ◽  
Vol 1 (04) ◽  
pp. 379-398
Author(s):  
Alifi Diptya Nidikara; Giosia Pele Widjaja
Keyword(s):  
Water Level ◽  
River Water ◽  
Adaptation Strategy ◽  
Adaptation Strategies ◽  
Activity Data ◽  
Starting Point ◽  
Data Collection Technique ◽  
High Degree ◽  
The City ◽  
Dry And Rainy Seasons

Abstract- Kalimantan (Borneo) is famous as the island of a Pulau Seribu due to the large number of rivers that run across its cities. One of the longest is the Kahayan river that flows through the city of Palangka Raya. The river as an important aspect in Kalimantan people’s life has made it the starting point for the embryo of a city in the form of river side dwellings that keeps on developing amidst the dynamics of the Kahayan river that undergoes a high degree of change in terms of water level during the dry and rainy seasons. The issue that arises is the addition and loss of space due to the changes of the river water level. The purpose of this research is to describe the adaptation strategies used by the writer in Kampung Pahandut that is unique when compared other kampongs (villages) due to its condition of having dry and flooded streets in the dwelling area. This research is qualitative in nature, employing the narrative descriptive method. The data collection technique uses purposive sampling to collect the physical and activity data. The physical and activity data were gained through a survey of the research object as well as picture taking, field observation, as well as the medium ofinterviews conducted with the Kampung Pahandut villagers. The data was then processed by classifying the numerous changes that had happened in both physical and activity-related terms as well as analyzing and concluding the adaptation strategies. It was found that in Kampung Pahandut there were both physical and activity-related changes as efforts to accommodate its people to enable them to survive the dry and flooding condition due to the changes of the river water level. Within these efforts there was also architectural adaptation based on the study consisting of three adaptation strategies, namely: being adjustable, refittable, and movable. Keywords: architectural adaptation, changes in water level, Kahayan River, Kampung Pahandut

scholarly journals Hydrochemical Evolution in Ciliwung River – Java, Indonesia: Study of Sea Water Mixture and Mineral Dissolution

2020 ◽  
Vol 20 (6) ◽  
pp. 1360
Author(s):  
Evarista Ristin Pujiindiyati ◽  
Paston Sidauruk ◽  
Tantowi Eko Prayogi ◽  
Faizal Abdillah
Keyword(s):  
River Water ◽  
Rainy Season ◽  
Sea Water ◽  
Dry Season ◽  
Mineral Dissolution ◽  
Water Type ◽  
Water Mixture ◽  
Hydrochemical Evolution ◽  
Increasing Trend ◽  
Saturation Indexes

The chemical characteristics of the Ciliwung River were analyzed to understand hydrochemical evolution. A fraction of sea water mixture and kinds of mineral controlling for chemicals were also determined. During three year investigations in 2015, 2016, and 2018, electrical conductivity increased with decreasing elevations. Two hydrochemical facies had been identified for the Ciliwung river water; those were Ca-Mg-HCO3 and Ca-Na-HCO3.  The river water mixing with seawater was recognized in the Mangga Dua site in which its water type had shifted to Na-Ca-HCO3-Cl. Based on Na-Cl contents, the fraction of sea water into the Ciliwung River reached 2% in the Mangga Dua site during the dry season and decreased to 0.7% during the rainy season in 2015. The much higher monthly rainfall during the dry season in 2016 and 2018 had washed out invading seawater from the Mangga Dua site; its fraction of sea water was less than 0.4%. Saturation indexes with respect to calcite, dolomite, and gypsum minerals showed an increasing trend related to the decreasing elevations. All water samples were undersaturated with respect to gypsum. Meanwhile, saturation indexes with respect to calcite and dolomite mostly indicated undersaturated, except in the Mangga Dua site that was saturated (during the rainy season in 2015 and dry season in 2018) and supersaturated during the dry season in 2015.

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