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All Journal Journal of Indonesian Coral Reefs International Journal of Remote Sensing and Earth Sciences (IJReSES)
Wikanti Asriningrum, Wikanti
Pusat Pemanfaatan Penginderaan jauh - LAPAN
Earth & Planetary Sciences Other

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Reef Landforms Identifications in Sikka, NTT Using Landsat Margery Asriningrum, Wikanti
Journal of Indonesian Coral Reefs Vol 1, No 1 (2011)
Publisher : Journal of Indonesian Coral Reefs

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Abstract

Information on condition and spatial distribution is essentially needed for better coral reef management. In order to provide the information, classifications of reeff morphology s is one way to obtain the physical condition of the reef. This method is relatively straightforward; with the means of remote sensing imageries, because the standard already exists. One of the challenges is what is the best way or detailed steps required to identify these highly variable objects. This exploratory research is aimed to develop identifications criteria of reef morphology s. Sikka district was chosen study area because it has some type of small islands with high diversity of reef morphology s. Each reef morphology s were analyzed to get a general habitat charasteristci which might be relevenat to coral reef management needs. Identificaton was performed visually with geomorphological approach. Indetifications result are qualitative, quantitative and spatial, and presented in teh forms of descrictive elaboration, tabular, and map
ANALYSIS OF THE PENETRATION CAPABILITY OF VISIBLE SPECTRUM WITH AN ATTENUATION COEFFICIENT THROUGH THE APPARENT OPTICAL PROPERTIES APPROACH IN THE DETERMINATION OF A BATHYMETRY ANALYTICAL MODEL Setiawan, Kuncoro Teguh; Winarso, Gathot; Nuha, Muhammad Ulin; Hartuti, Maryani; Ginting, Devica Natalia BR; Emiyati, .; Azis, Kholifatul; Kusuma, Fajar Bahari; Asriningrum, Wikanti
International Journal of Remote Sensing and Earth Sciences (IJReSES) Vol 18, No 2 (2021)
Publisher : National Institute of Aeronautics and Space of Indonesia (LAPAN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.ijreses.2021.v18.a3667

Abstract

The attenuation coefficient (Kd) can be extracted by an apparent optical properties(AOP) approach to determine marine shallow-water habitat bathymetry based on an analytical method. Such a method was employed in the Red Sea by Benny and Dawson in 1983 using Landsat MSS imagery. Therefore, we applied the Benny and Dawson algorithm to extract bathymetry in shallow marine waters off Karimunjawa Island, Jepara, Central Java, Indonesia. We used the SPOT 6 satellite, which has four multispectral bands with a spatial resolution of 6 meters. The results show that three bands of SPOT 6 data (the blue, green, and red bands) can produce bathymetric information up to 30.29, 24.63 and 18.58 meters depth respectively. The determinations of the attenuation coefficients of the three bands are 0.08069, 0.09330, and 0.39641. The overall accuracy of absolute bathymetry of the blue, green, and red bands is 61.12%, 65.73%, and 26.25% respectively, and the kappa coefficients are 0.45, 0.52, and 0.13.
ANALYSIS OF WATER PRODUCTIVITY IN THE BANDA SEA BASED ON REMOTE SENSING SATELLITE DATA Marpaung, Sartono; Faristyawan, Risky; Purwanto, Anang Dwi; Asriningrum, Wikanti; Suhada, Argo Galih; Prayogo, Teguh; Sitorus, Jansen
International Journal of Remote Sensing and Earth Sciences (IJReSES) Vol 17, No 1 (2020)
Publisher : National Institute of Aeronautics and Space of Indonesia (LAPAN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.ijreses.2020.v17.a3280

Abstract

Abstract. This study examines the density of potential fishing zone (PFZ) points and chlorophyll-a concentration in the Banda Sea. The data used are those on chlorophyll-a from the Aqua MODIS satellite, PFZ points from ZAP and the monthly southern oscillation index. The methods used are single image edge detection, polygon center of mass, density function and a Hovmoller diagram. The result of the analysis show that productivity of chlorophyll-a in the Banda Sea is influenced by seasonal factors (dry season and wet season) and ENSO phenomena (El Niño and La Niña). High productivity of chlorophyll-a  occurs during in the dry season with the peak in August, while low productivity occurs in the wet season and the transition period, with the lowest levels in April and December. The variability in chlorophyll-a production is influenced by the global El Niño and La Niña phenomena; production increases during El Niño and decreases during La Niña. Tuna conservation areas have as lower productivity of chlorophyll-a and PFZ point density compared to the northern and southern parts of the Banda Sea. High density PFZ point regions are associated with regions that have higher productivity of chlorophyll-a, namely the southern part of the Banda Sea, while low density PFZ point areas  are associated with regions that have a low productivity of chlorophyll-a, namely tuna conservation areas. The effect of the El Niño phenomenon in increasing chlorophyll-a concentration is stronger in the southern part of study area than in the tuna conservation area. On the other hand, the effect of La Niña phenomenon in decreasing chlorophyll-a concentration is stronger in the tuna conservation area than in the southern and northern parts of the study area. 
Co-Authors . Emiyati, . Anang Dwi Purwanto, Anang Dwi Azis, Kholifatul Faristyawan, Risky Gathot Winarso, Gathot Ginting, Devica Natalia Br Kuncoro Teguh Setiawan, Kuncoro Teguh Kusuma, Fajar Bahari Maryani Hartuti, Maryani MUHAMMAD ULIN NUHA Sartono Marpaung, Sartono Sitorus, Jansen Suhada, Argo Galih Teguh Prayogo