Analyzing Potential Water Harvesting from Atmosphere in Near Coastal Area

Ida Bagus Mandhara Brasika(Department of Marine Sciences, Faculty of Marine Sciences and Fisheries, Universitas Udayana, Jl. Raya Kampus Unud, Jimbaran, Kuta Selatan, Badung, Bali, Indonesia 80361)
Putra Bagus Panji Pamungkas(Center of Remote Sensing and Ocean Science (CReSOS), Universitas Udayana, Jl. P.B. Sudirman, Denpasar, Bali, Indonesia 80234)

Abstract


Water is a basic need. However there are many near coastal regions which have very limited access for fresh water. The water in area close to coastal  is mainly affected by ocean, indirectly by weather/climate conditions and directly from seawater intrusion. While abundant fresh water is actually available in the atmosphere in the form of moisture. Recent technology, such as Atmospheric Water Generator (AWG), is a possible solution to gain water from our atmosphere. However, comprehensive study is needed to understand the potential water harvesting in our atmosphere. Here, we examine the water availability in the atmosphere based on several parameters like temperature and humidity. The data is collected from observation using WS1040 Automatic Weather Station in a year of 2020 with a half-hour interval. Then, we calculate the availability of water content during each season, especially in dry conditions. We also simulate the water harvesting to fulfil daily basic needs of fresh water. The atmospheric parameters have shown a monsoonal pattern. Water content decrease in atmosphere during dry season but the water deficit occur after dry season. Although water harvesting able to supply daily freshwater needs, it is not recommended to be single source as it requires massive water storage and high-efficient AWG.

Keywords


Water Scarcity, Intrusion, Water Vapor Density, Atmospheric Water Generator

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DOI: http://dx.doi.org/10.36956/sms.v3i1.354

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