Judul: Estimasi Evapotranspirasi Spasial Menggunakan Suhu Permukaan Darat (LST) Dari Data MODIS Terra/Aqua Dan Pengaruhnya Terhadap Kekeringan
Abstrak: Evapotranspirasi merupakan informasi penting dalam perkembangan bidang pertanian di Indonesia. Keterbatasan jumlah stasiun cuaca yang melakukan pengukuran mengenai evaporasi dan evapotranspirasi di Indonesia, merupakan salah satu penyebab kurang meratanya penelitian mengenai evapotranspirasi di Indonesia. Oleh karena itu penelitian ini dilakukan dengan tujuan untuk mengestimasi evapotranspirasi dari nilai suhu permukaan darat (LST), dan menganalisis adanya hubungan antara evapotanspirasi dengan kekeringan. Penggunaan metode penginderaan jauh dalam penelitian ini dilakukan untuk mengatasi keterbatasan data dari stasiun cuaca. Hasil yang diperoleh dari pendugaan evapotranspirasi menggunakan data Citra MODIS Terra/Aqua di Bogor nilainya berkisar antara 11.4 – 14.5 mm/8 hari, Indramayu berkisar 10.7 – 12.6 mm/8 hari, Malang berkisar antara 10.6 – 14.2 mm/8 hari dan Surabaya berkisar antara 11.3 – 12.2 mm/8 hari. Sedangkan nilai evapotranspirasi dari pengukuran lapang di Bogor berada pada kisaran 23.7 – 33.2 mm/8 hari, Indramayu berada di kisaran 22.8 – 32.4 mm/8 hari, Malang berada pada kisaran 21.5 – 31.4 mm/ 8 hari dan Surabaya berada pada kisaran 21.4 – 32.9 mm/8 hari. Dari hasil penelitian ini diketahui bahwa evapotranspirasi bukan merupakan satu – satunya unsur meteorologi yang mempengaruhi terjadinya kekeringan. Dan tinggi rendahnya evapotranspirasi dipengaruhi oleh beberapa faktor seperti topografi, keadaan atmosfer/cuaca (CH, kelembaban, suhu, angin, dll). Nilai keeratan antara LST dengan ETp lebih tinggi dibandingkan nilai keeratan antara NDVI dengan ETp. Dalam hal ini proses evapotranspirasi merupakan salah satu faktor tak langsung pada suatu kejadian kekeringan.
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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: Case Study of Gallbladder Mucocele and Treatment Used In Small Animals
Abstrak: Gallbladder mucocele (GM) is defined as distention of the gallbladder caused by an inappropriate accumulation or deposition of high concentrations of bile. The purpose of this case study is to study GM conditions in small animals and to report the clinical sign and characteristics of GM through the sonogram interpretation and blood chemistry test evaluation, and studies related to the therapy given and other treatments recommended. A 14-year-old Toy Poodle dog has been diagnosed with severe GM and cholecystitis. No pain signs were shown during the physical examination as asymptomatic is a common characteristic in the early stage of biliary related diseases. In this study Abdominal ultrasonography interpretation and blood chemistry evaluation was conducted in 2021-2022 and analyzed as a secondary data source. Ultrasonography results showed presence of hyperechoic, immobile deposits in gallbladder accompanied by wall thickening and enlarged in size, followed by a significant increase in the enzyme alkaline phosphatase (ALP). This study has summarized mainly the diagnosis and treatments of GM in small animals and suitable alternatives treatments were recommended to encounter the GM conditions in small animals. The effectiveness of combined therapy shows the positive impact on the patient, the condition of GM has been under control.
Keyword: ultrasound, gallbladder, biliary sludge, abdominal ultrasonography