Judul: Studi dampak kenaikan paras laut dengan memanfaatkan data aster/GDEM aster dan Topex Poseidon/Jason 1.
Abstrak: Kenaikan paras laut global merupakan salah satu isu yang aktual saat ini sebagai salah satu efek dari pemanasan global. Kenaikan paras laut dapat memberikan dampak negatif langsung pada wilayah pesisir seperti banjir permanen dan kerusakan infrastruktur di daerah pesisir pantai, oleh karena itu diperlukan langkah-langkah adanya mitigasi terhadap kenaikan paras laut. Tujuan penelitian adalah untuk menganalisis laju kenaikan paras laut dari data citra satelit dalam kurun waktu 16 tahun dan mempelajari dampaknya terhadap wilayah genangan pesisir pantai. Penelitian ini dilakukan di wilayah pesisir Cirebon pada bulan Mei 2010 sampai Mei 2011 dengan survei lapang pada Bulan Oktober 2010. Dalam penelitian ini dilakukan pengolahan citra satelit dan survei lapang untuk validasi. Bahan penelitian yang digunakan adalah citra satelit The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) dan citra satelit Landsat, Global Digital Elevation Model (GDEM) Aster kenaikan muka laut, tinggi gelombang, pasang surut, dan data angin.
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Judul: Penilaian Dampak Kenaikan Muka Air Laut Terhadap Wilayah Pesisir (Studi Kasus : Kota Semarang)
Abstrak: Sea level rise is one of important global issue now. It has been caused by ice melting in pole, climate extreme event, and land level decreasing. Coastal area have high vulnerability effect by sea level rise. Coastal area is important to support the economic development country. If the sea level rise was happened so many properties that losses. The problem like land use losses, people evacuation, diseases, sanitation, and economic losses will appear. Sea level rise can be forecasted by satellite imagery like ENVISAT, Topex/Poseidon, Jason1 and Jason2. All of the data can be processed by one of adds on in Microsoft Excel software. Flooded area was created by DEM SRTM data with 30 x 30 meter resolution. The result show that sea level rise 0,69 mm/year happened in Semarang. The forecasting result at 2100 in Semarang show change to be flooded area 1,8 km. The economic losses can be computed by describe land of use. The result show that economic losses is IDR 6,7 billion or IDR 36 million per hectare in 2100. 145 people will be evacuated if it’s happened. Physically adaptation like house type changing and create sea wall also non physically adaptation by creating relocation area will be needed to prepare if the forecast become real.
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Judul: Sintesis dan Pencirian Kompleks Fe(III)-Kuersetin
Abstrak: Quercetin belongs to flavonols which is able to chelate metal ions. Quercetin may chelate metal ions at 3’,4’-catechol, 3- or 5-hydroxycromone sites. In this study, quercetin was complexed with Fe(III). The complex with Fe(III) ions from FeCl3·6H2O was more stable than the complex derived from Fe(NO3)3·9H2O. The quercetin was yellow in color and showed maximum wavelengths (λ􀭫􀭟􀭶) at 250 and 370 nm. The Fe(III)-quercetin complex from Fe(NO3)3·9H2O was yellowish green with 􀟣􀭫􀭟􀭶 at 280 and 420 nm, whereas that from FeCl3·6H2O was dark green with 􀟣􀭫􀭟􀭶 at 280 and 430 nm. The 􀟣􀭫􀭟􀭶 shift indicated that the complex was formed at 3-hydroxychromone site. The Fe(III)- quercetin complex was formed with 1:1 metal-ligand mole ratio based on atomic absorption spectrophotometry analysis and the X-ray diffractogram showed that the crystallinity of the complex was 37%.
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