Judul: Evaluasi manual penafsiran visual citra alos palsar dalam mengidentifikasi penutupan lahan menggunakan citra alos palsar resolusi 50 M
Abstrak: Pemantauan dan penyusunan basis data menggunakan SIG di Indonesia telah lama dilakukan menggunakan citra optik, namun hingga saat ini citra optik masih memiliki keterbatasan, seperti adanya tutupan awan. Sebagai alternatif untuk mengatasi kelemahan citra optik, saat ini telah tersedia sistem penginderaan jauh menggunakan radar. Satelit ALOS (Advanced Land Observation Sattelite) dengan sensor PALSAR (Phased Array L-band Synthetic Aperture Radar) menggunakan sensor gelombang mikro aktif dengan frekuensi L-band. Sensor PALSAR menghasilkan empat macam polarisasi yaitu HH, HV, VH, dan VV. Ada tiga faktor yang mempengaruhi hasil penafsiran visual, yaitu ragam jenis tutupan lahan, keberadaan alat bantu, dan penafsir. Keberadaan manual sebagai alat bantu penafsiran visual menjadi penting ketika penafsir yang berbeda dapat menghasilkan hasil yang berbeda. Kualitas hasil penafsiran tutupan lahan kemudian ditentukan oleh kualitas alat bantu penafsiran, dalam hal ini manual penafsiran tutupan lahan.
Keyword: 

Judul: Perbandingan penafsiran visual antara Citra Alos Palsar Resolusi 50 m dengan Citra Landsat Resolusi 30 m dalam mengidentifikasi penutupan lahan (Studi Kasus di Kabupaten Bogor, Kabupaten Sukabumi, dan Kabupaten Cianjur)
Abstrak: Posisi geografis Indonesia yang berada pada daerah tropis merupakan salah satu kendala dalam menggunakan citra LANDSAT resolusi 30 m. Adanya awan dan asap sangat mengganggu dalam proses identifikasi objek di permukaan bumi. Untuk mengatasi kelemahan dari citra optik tersebut, maka tersedia suatu sistem radar, salah satunya adalah sensor PALSAR. Sensor ini merupakan sensor gelombang mikro aktif yang dapat melakukan observasi siang dan malam tanpa terpengaruh kondisi cuaca. Oleh karena itu, butuh penelitian lebih lanjut mengenai kemampuan Citra ALOS PALSAR dibandingkan dengan Citra LANDSAT dalam mengidentifikasi penutupan lahan.
Keyword: 

Judul: Biology and ecology of the buffalo fly, haematobia exigua de meijere (diptera:muscidae)
Abstrak: The life history of the buffalo fly was observed at room temperature of 27°-29.5°C and at a relative humidity of 48-68 percent. The eggs hatched after 17-22 hours, with an average of 18 hours. First instar larvae measured 1.25 + 0.16 mm long and 0.27 + 0.037 mm wide. reach the second larval stage. It took 6-12 hours to the second instar larvae measured 2.676 +0.187 mm long and 0.353 +0.028 mm wide. The second instar took about 12-24 hours to reach the third larval stage. The third instar measured 6.833 + 0.189 mm long and 0.919 + 0.051 mm wide. It took about 2-3 days for the third instar to become pupae. Duration of the pupal stage was about 5-7 days before the adults emerged. Under laboratory condition, the buffalo fly completed its life cycle in 9.5 to 10.5 days, whereas under field condition it took 9-14 days with an average of 10.5 days. The growth ratio which was based on the measurements of the cephalo-pharyngeal skeleton of each instar was 1.797. The preoviposition period was 8-12 days and mating usually occurred on the 6th or 7th day. The longevity of the male was 29 days, whereas it was 32 days in the female. The range of egg production under laboratory condition was between 20-139 per female fly. The belly and hind legs of the carabao were the most preferred habitat either during cloudy and cool dry or shiny and warm day. When the weather was clear and the carabao was in the shade, the flies tended to be more distributed particularly on the shoulder, dewlap, back and horns. The carabaos had relatively fewer Musca sp. and Stomoxys calcitrans than cattle; never the less carabaos had a higher infestation of buffalo fly than cattle. Oviposition occured either during the day or night but the buffalo flies were more active during the night than in the day time. The effect of various lengths of exposure time of manure in relation to the oviposition was profound. observed, the maximum number of the buffalo flies was occurred when the dung was exposed for 30 minutes. With increasing time of exposure the number and variety of insects also increase. It was evident that Sepsidae and psychodidae were the most dominant insects emerging from the dung. The number of buffalo flies also increased with increasing
Keyword: