Judul: “Perhitungan Evapotranspirasi Menggunakan Citra MODIS (Studi Kasus: Das Cimadur, Banten)”
Abstrak: Evapotranspiration (ET) is the most important component of water balance after precipitation. Currently, measurement of evapotranspiration can be conducted with the input data based on Remote Sensing data. This research analyzed empiric equation of evapotranspiration, the Blaney-Criddle, using Land Surface Temperature (LST) value, extracted from Moderate Resolution Imaging Spectroradiometer (MODIS), as an temperature input in this equation. In this research validation was made between LST MODIS (day and night) and temperature of climatology station of Darmaga, at various height (5 cm, 100 cm, 120 cm) and times (07.00, 07.10, 13.00, 13.50 WIB). On LST day, temperature estimated by MODIS, closer to the temperature measurement on climatology station at a height 5 cm, with a R2 value 0,362. While the LST night have a fairly strong relationship with the T station at a height 120 cm. However, the highest R2 value obtained on the relationship between LST night with the T station at a height of 100 cm with a R2 value of 0,567. Generally, the evapotranspiration potential value in Cimadur watershed ranged from 4,45-5,65 mm/day (close to actual condition). With remote sensing based, evapotranspiration value can be presented spatially and temporally. However, there are constraints related the availability of data that caused the evapotranspiration value is only available in the dry months. This study shows that if this condition is corrected by combining the best availability of LST within a month, the availability of data in one month can be increased more than 50% from the initial condition 0%. The validation result between evapotranspiration value which is resulted by the Blaney-Criddle (ETm) and evapotranspiration value from evaporation pan A and Lysimeter, was giving the ETm value closer to the evapotranspiration value from pan A with a different value between ETm and pan A ranged from 0,82-1,32 mm (for 1x1 pixel) and 0,62-1,34 mm (for 3x3 pixel).
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Judul: Estimasi Evapotranspirasi Instantaneous dan
Harian Menggunakan Plugin QGIS : Qwatermodel dan Citra Landsat 8
Abstrak: Permasalahan lingkungan seperti perubahan iklim dapat menimbulkan kelangkaan air, sehingga prediksi evapotranspirasi (ET) secara cepat diperlukan untuk efisiensi kebutuhan air tanaman. Estimasi ET secara cepat dapat dilakukan dengan menggunakan plugin Qwatermodel berdasarkan model Deriving Atmosphere Turbulent Transport Useful to Dummies Using Temperature (DATTUTDUT). Penelitian ini bertujuan menganalisis sebaran Land Surface Temperature (LST), Normalized Difference Vegetation Index (NDVI), dan output Qwatermodel (Raster 6 band), menganalisis hubungan antara LST, NDVI, dan net radiation (Rn) terhadap ET instantaneous (ETins), serta menganalisis estimasi ET harian dari ETins berbagai tutupan lahan. Data yang digunakan adalah citra Landsat 8-L1T yang diolah menjadi LST untuk menjalankan plugin Qwatermodel. Hasil penelitian menunjukkan sebaran LST pada tutupan lahan karet yaitu 299,7°K (26,55°C), pada sawah 297,4°K (24,25°C), pada tebu 302°K (28,85°C), dan pada sawit yaitu 299,7°K (26,55°C). Sebaran nilai NDVI pada tutupan lahan karet yaitu 0,76, pada sawah 0,79, pada tebu 0,54, dan pada sawit yaitu 0,84. Sebaran ETins yang diperoleh yaitu 0,64 mmjam-1 pada karet, pada sawah 0,8 mmjam-1, pada tebu 0,54 mmjam-1, dan pada sawit yaitu 0,8 mmjam-1. LST menunjukkan hubungan korelasi negatif yang sangat kuat terhadap ETins, sedangkan Rn dan NDVI berkorelasi positif terhadap ETins, di mana Rn berkorelasi sangat kuat, sedangkan NDVI berkorelasi dari sedang hingga kuat. Hasil konversi ETins menjadi ET harian melalui plugin Qwatermodel menunjukkan sebaran ET harian pada tutupan lahan karet yaitu 7,68 mmhari-1, pada sawah 9,6 mmhari-1, pada tebu 6,5 mmhari-1, dan pada sawit yaitu 9,6 mmhari-1. Adapun RMSE antara ET harian menggunakan GUI plugin Qwatermodel dengan ET harian Timmermans berkisar 1,2-1,8 dan nilai MAPE bervariasi dari 11 hingga 18 persen.
Keyword: DATTUTDUT, Land surface temperature, Qwatermodel

Judul: Studi Kasus Liver Neoplasia pada Anjing Shih Tzu
Abstrak: Liver neoplasia is the excessive and uncontrolled replication of hepatocytes that forms nodules visible in ultrasonography. The purpose of this study is to study and discuss the characteristic, diagnosis and treatment of liver neoplasm through the interpretation of ultrasonography and hematology in a Shih Tzu dog. Ultrasonography is conducted with a Chison Q8 ultrasound machine with a 5 to 7 MHz frequency convex probe on lateral recumbency. The blood cells, liver enzymes and nodules sizes were the main parameters in this study. The results in the period of three years from 2021 to 2023 were interpreted and supported with secondary data sources. The Shih Tzu dog is 14 years old in the year 2023 with a body weight of 5.21kg. No obvious clinical signs were observed during previous examinations. However, lethargy, vomiting and anorexia were recorded in its latest examination. Thrombocytosis, granulocytosis, high liver enzymes and hypoglycemia, which are some of the neoplastic clinical manifestations were also presented by this patient. Besides, liver neoplasm, spleen neoplasm and biliary sludge were the sonogram findings of this patient. The liver and spleen neoplasm was observed stable, while the biliary sludge volume fluctuated. The treatment strategy recorded is Ondansetron, Samylin®, Ornipural and Ursodeoxycholic acid.
Keyword: Blood biochemistry profile, Hematology, Liver Neoplasia, Shih Tzu, Ultrasonography