Analisa Potensi Air Danau Karo Pulau Obi Halmahera

Abstract

<span><em>The existence of Lake Karo is needed to meet the water needs of nickel mining activities which are located </em><span><em>approximately 5 km to the North with a water storage area of 9.88 km2 and a watershed of 65.84 Km2. The </em><span><em>analysis was carried out based on climate data, topography, watershed, geological maps, geohydrology, lake </em><span><em>maps, river discharge, groundwater potential, land use, environmental documents. The method for estimating </em><span><em>river discharge is developed by Mock (1973), this method requires climate data and soil characteristics, </em><span><em>while in the calculation besides direct surface runoff there is also underground flow. The results of the </em><span><em>simulation monthly discharge during the period 2014-2018, the mainstay discharge simulation of the Karo </em><span><em>Lake watershed area with a probability of 95% is 0.505 m3 / second. The monitoring results show the </em><span><em>symptoms of lake water level decline in recent years due to increased Lake Karo water intake. Therefore it is</em><span><em>necessary to look for other alternative sources to overcome them.</em></span></span></span></span></span></span></span></span></span><br /><br class="Apple-interchange-newline" /></span>