LISat Symposium Program Book

T h e 3 r d I n t e r n a t i o n a l S y m p o s i u m o n L I S A T 2 0 1 6 researsch, LULCC characteristics are determined using a time-series of remotely sensed data (Landsat 5 TM, Landsat 7 ETM, and Landsat 8 OLI) using supervised classification scheme resulting in a time-series data set including land use images for 1999, 2000, 2010, and 2016. LULCC simulations, achieved through Markov-cellular automata (CA) methodologies to simulating LULCC in year 2030 using Land Change Modeler tools on Idrisi Selva software. The result showed that in Komering watershed land use are dominated by forest, plantation, and wetland farming. Built-up area very much influenced by social factors, such as the distance from the capital district, distance from the center of economic activity and population density. While the variables that hamper built-up area are slope and elevation. Komering watershed experience drastis decrease in forest land use. Land use predictive result in 2030 also shows decrease of forest acreage, and developed area are increased up. SAT-022 Model of Estimating Water Volume in Peatland Ecosystem with Landsat 8 OLI – TIRS (Case Study: PT. BSS 1, West Borneo). Allan Nur Wahid (Bogor Agricultural University, Indonesia; [email protected]) Water content on a land describe water amount in air (RH), soil water content (KAT), and biomass. This research aims to get empiric model that can be applied in satellite imagery interpretation to estimate water amount on peatland. Research method consists of two activity field data collecting and data processing. Field data collecting aims to get weather parameters such as radiation, air temperature, surface temperature, RH, KAT, and biomass in secondary forest vegetation cover, shrub, and bush. Data processing consists of field data and satellite data processing. Field data processing aims to know real correlation inter parameters water content on land. Water content on land estimated used by parameters such as LE, G, and band 6 from data landsat 8. Result satellite data estimated, 3 3 secondary forest contains 17.7 m water in air, 17.2 m in biomass on area of 900 3 3 m . Shrub contains 16.3 m water in air, 16.9 m in biomass, while in bush 14.3 2 3 3 m water in air, 0.8 m in biomass. Result of field data analysist contains KAT of 3 3 3 secondary forest 1155.1 m , shrub contains 1093.6 m , and bush 1119.4 m on same area. SAT-023 Multi-scale Accuracy Assessment of Land Cover Map Derived from Combination of Sentinel 1 Radar and Sentinel 2 Multispectral data using Random Forest Classifier. Sanjiwana Arjasakusuma*, Uji Astrono Pribadi, Gilang Aria Seta (Faculty of Geography, Gadjah Mada University, Indonesia; [email protected]) The recent freely-available Sentinel 2A optical and dual polarization Sentinel 1 radar data observation from Sentinel-ESA project sparks the promising possibility of enhancing the performance of land cover mapping by combining these two sensor data. However, obtaining an optimum accuracy particularly by using Program Book 149

T h e 3 r d I n t e r n a t i o n a l S y m p o s i u m o n L I S A T 2 0 1 6 Sentinel 2A dataset with different spatial resolution of 10, 20, and 60 m still remain a challenge. In this research, we aim to test the accuracy of land cover mapping using the random forest classifier algorithm with different input of datasets and sensor combination with different scale of resolution. Two different datasets from 13 multispectral bands and VV-VH polarization backscatter and intensity data were used as classification inputs. We conducted classification in 10 m, 20 m and 60 m by 1.) using the optical bands only and 2.) optical bands and radar data. The result shows that by utilizing the full optical bands of Sentinel 2A combined with Sentinel 1 radar backscatter dataset increased the sensitivity of land cover mapping. The overall accuracy including the accuracy for each class of classification are also improved in both model assesment and map validation. For map validation, the proportion area used in confusion matrix shows that by combining 13 optical bands with radar backscatter give the highest overall accuracy of 79.2 +- 8%, while the use of 4 optical bands give the lowest overall accuracy of 66.7 % +- 7 %. SAT-024 Indonesian Coverage Simulation of SAR Satellite at Near-Equatorial Orbit. Harry Septanto*, Satriya Utama, Robertus Heru Triharjanto, Suhermanto (Satellite Technology Center LAPAN, Indonesia; [email protected]) Properties of SAR (Synthetic Aperture Radar) that able to penetrate the cloud and does not depend on the sunlight are a number of advantages when utilized for monitoring tropical region like the IMC (Indonesian Maritime Continent). Moreover, since having areas along equatorial belt, the IMC is at a shortcoming from perspective of highly inclined LEO (Low Earth Orbit) satellite. It would result shorter and infrequent pass times when compared with a near-equatorial LEO satellite whose low inclination. This paper reports on the investigation of a near- equatorial LEO SAR satellite through simulations. The simulations were run in nine scenarios of orbit parameter that consist of combinations of attitude {500 km, 600 0 0 0 km, 700 km} and inclination {8 , 9 , 10 }. The target area is defined as 50 km x 50 km around Jakarta. Meanwhile, the SAR sensor simulation is run with swath of 40 0 0 km x 40 km, incidence angle about 25 -28 and Stripmap mode. Revisit time of the target for each scenarios has been calculated. Each scenarios results revisit time that quantitatively unique but has similar pattern in the point of view of interval between each single pass. SAT-025 Remote Sensing and Weather Elements for Exploring Marine Resources Potency in Lampung Bay. Andika Putri Firdausy*, Andika Fauziah Hapsari (Cartography and Remote Sensing, University of Gadjah Mada, Indonesia; [email protected]) Lampung Bay in South Lampung is one of high activity level seas since Panjang Port in it becomes one of the largest goods port in the southern part of Sumatera Island. Besides a role in trade and export-import, Panjang Port in Lampung Bay also has a major role to fulfill the needs of marine resources, especially for Program Book 150

T h e 3 r d I n t e r n a t i o n a l S y m p o s i u m o n L I S A T 2 0 1 6 fishermen and the surrounding communities. The purpose of this study was to determine the effect of weather component to marine resources, such as sea temperature, solar radiation, and chlorophyll-a concentration related to the potential of marine resources in the waters of long using remote sensing technology. AQUA MODIS imagery with sensors on the bands 31 and 32 are used in determining the location estimate. Radiometric correction image pre-processing is performed to restore the image pixel value at its true value. Planck algorithm used to convert pixel values into values of sea surface temperature. In addition, ATDB algorithm used for the estimation of chlorophyll-a. Determination of absolute coordinates is done by using geometric to obtain the exact location of marine resources concentrations. SAT-026 Radiometric Performance of Multispectral Push-Broom Imager of LAPAN-IPB Satellite. A Hadi Syafrudin (National Institute of Aeronautics and Space (LAPAN), Indonesia; [email protected]) As experimental microsatellite with remote sensing mission, LAPAN-IPB brings a multispectral push-broom imager as main optical payload. It has four colour channel RGB-NIR, with 15 meter resolution and approximately 100 km swath width. To assure that the imager will produce good quality images, several pre- launch measurement and calibration have been done. This paper aims to analyze radiometric performance of the multispectral imager of LAPAN-IPB satellite. There are four radiometric aspects that will be analyzed, i.e.: spectral characteristic of each band, vignetting effect of each band-detector, imager parameter setting, and temperature characteristic of the imager. Each aspect has different measurement method of utilizing integrating-sphere as highly uniform light source and monochromator as narrow band wavelength light source. Spectral measurement result shows that LAPAN-IPB multispectral imager has spectral band of blue at 430-510nm, green at 520-590nm, red at 630-690nm and NIR at 780-900nm. Vignetting measurement shows that each band has significant vignette effect, where pixels at edge of detector have around 20% brightness reduction compare to pixels at centre of detector. Imager parameter measurement shows that exposure command has linear relationship to the actual imager exposure time, but ADC gain command has non-linear of exponential relationship to actual signal amplification. Meanwhile, temperature measurement shows that temperature of all detector increase as imager operation time goes, which influences to detector noise increase significantly. All of these results can be used as references for pre- processing raw image data of multispectral imager of LAPAN-IPB satellite, and also for further next-level image processing application. SAT-027 Camera Payload Systems for the LAPAN IPB Experimental Microsatellite. A Hadi Syafrudin (National Institute of Aeronautics and Space (LAPAN), Indonesia; [email protected]) Program Book 151

T h e 3 r d I n t e r n a t i o n a l S y m p o s i u m o n L I S A T 2 0 1 6 LAPAN IPB is the third LAPAN satellite that assembly, integrating, and testing (AIT) was completed launched in June 2016. Orbit of this satellite is sun synchronous with altitude 505 km. Payload of these satellites are four camera systems, Automatic Identification System (AIS) for vessel traffic, scientific Magnetometer and amateur radio. Two of camera using analogue transmission and other use digital with Digital X-Band transmitter 105 mbps. Camera satellite system has some enhancement compared LAPAN previous satellite generation. The main enhancements are pushbroom camera, payload data handling, GPS time synchronize or time tagging for attitude data streaming, and video micro bolometer for experiment horizon sensor. This paper will describe the payload system configuration, Camera payload system specification, and AIT camera payload system. Finally, ground test of camera until satellite on orbit and the result will be presented. SAT-028 The Development of Daily System Data Processing Landsat-8 Surface Reflectance using LaSRC in LAPAN Pekayon (Case Study: Path/Row 121065). Kuncoro Adi Pradono*, Fadila Muchsin (LAPAN-PUSTEKDATA; [email protected]) LAPAN data acquisition receive Landsat-8 daily, the radiometric data correction using Top of atmosphere and BRDF was applied. This paper describes the design and development of data processing Landsat-8 surface reflectance product that use auxiliary data from MODIS which enrichment of systematic data processing in LAPAN Pekayon. We used level 1T data LC81210652015268RPI00 from Rumpin ground station in order to look pattern of surface reflectance spectral on coastal and mainland for further application. Open source environment was applied to the design using Ubuntu 14.04 operating system and dependency library was needed for espa-product formatter. Land surface reflectance code was the algorithm applied in this system using auxiliary data that derived from MODIS Terra/Aqua Surface Reflectance Daily L3 Global 0.05 degree CMG and Aerosol Optical Thickness Daily L3 Global 0.05 degree CMA. By combine CMA and CMG data, the auxiliary data which contain water vapor, ozone, AOT and pressure would be completely extraction in HDF package. Processing for each scene by ulticore CPU need about 30 minute. The result of this data processing was surface reflectance for visible (1–7) bands (OLI/TIRS only), top of atmosphere for visible (1–7, 9) +Thermal (10–11) bands and QA band which contain of cloud, adjacent cloud, cloud shadow, Aerosols, cirrus, aerosol interpolation. SAT-029 Analysis of LAPAN-IPB Image Lossless Compression Using Differential Pulse Code Modulation and Huffman Coding. Patria Rachman Hakim*, Rizki Permala (LAPAN- Satellite Technology Center; [email protected]) LAPAN-A3/IPB satellite is the latest Indonesian experimental microsatellite with remote sensing and earth surveillance missions. The satellite has three optical payloads, which are multispectral push-broom imager, digital matrix camera and Program Book 152

T h e 3 r d I n t e r n a t i o n a l S y m p o s i u m o n L I S A T 2 0 1 6 video camera. To increase data transmission efficiency, the multispectral imager data can be compressed using either lossy or lossless compression method. This paper aims to analyse Differential Pulse Code Modulation (DPCM) method along with Huffman coding that are used in LAPAN-IPB image lossless compression. Based on several simulation and analysis that have been done, current LAPAN-IPB lossless compression algorithm has moderate performance. There are several aspects that can be improved from current configuration, which are the type of DPCM code used, the type of Huffman entropy-coding scheme, and the use of multi-dimensional compression method. The key results of this research show that at least two neighbouring pixels should be used for DPCM calculation, and varying Huffman table increases the compression performance greatly. In addition, if on- board computer can support for more complicated compression algorithm, two- dimensional compression scheme can be used to increase compression ratio. All of these results can be used as references in designing Payload Data Handling System (PDHS) for an upcoming LAPAN-A4 satellite. SAT-030 Noise Removal Using Thresholding and Segmentation for Random Noise Sentinel-1 Data. Haris Suka Dyatmika*, Katmoko Ari Sambodo, Marendra Eko Budiono, Hendayani (Remote Sensing Technology and Data Center, LAPAN; [email protected]) Sentinel-1 constellation will cover the entire world’s land area continuously. Although Sentinel-1 data show consistency and stability, several noise have been observed in the data i.e. random noise on the right and left of the scene. The noise exists on the right and left of the scene of the SAR data that should be no data value. The noise is quite disturbing and interferes the data especially on mosaic product of some scene data sets. The mosaic product has a seam line that separate a scene and the neighbor that should be disappear after the mosaic process. This paper shows a study on how to remove the random noise without losing the information contained. Some Sentinel-1 Level-1 GRD (Ground Range Detected) data in Kalimantan area were used in this study. Principally, the methods used for the noise removal were thresholding and segmentation. If the noise removal process using thresholding only, many noise still exist in the data. Region on the right and left of the scene filtered by a certain value of intensity and segmentation area. Generally, improvement of the data was evaluated both after each scene noise removal process and mosaic product. The noise in each scene Sentinel-1 data disappear and the mosaic product look seamless after applying the noise removal. SAT031 Optical Properties and Crystal Structure of Ba0.55Sr0.45TiO3 Doped by Lithium Oxide (Li2O) Thin Films for Light Sensor on Satellite Technology. Irzaman (Department of Physics, Bogor Agricultural University, Bogor 16680, Indonesia; [email protected]) Program Book 153

T h e 3 r d I n t e r n a t i o n a l S y m p o s i u m o n L I S A T 2 0 1 6 Ba0.55Sr0.45TiO3 doped by lithium oxide (Li2O) (0, 1, 3, 5%) thin films have been successfully manufactured by growing Ba0.55Sr0.45TiO3 Doped by Li2O (BLST) on the surface of p-type Si (111) substrate using chemical solution deposition and spin coating techniques with a rotational speed of 3000 rpm for 30 seconds. The BST and BLST thin films were manufactured by using concentrations of 1 M, annealing process at 850 °C of temperature for 15 hours. Characterizations of optical and crystal structure were conducted in this research. The optical properties of BST and BSLT were characterized using Vis-NIR spectrophotometer. The optical properties showed absorbance spectra and energy gap. The dopant addition affects absorbance value and energy gap. Characterization of BST and BLST films structural was characterized by XRD analysis which showed that cubic structure. These results show that BST and BLST thin films are suitable for use as a light sensor on satellite technology. SAT-032 Integration of Water Quality Characteristic, Land Use, and Land Cover to Determine River Pesanggrahan Water Quality Status. Hefni Effendi*, Sri Muslimah, May Parlindungan (Center for Environmental Research, Bogor Agricultural University (IPB); Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, Bogor Agricultural University (IPB); [email protected]) Government regulation number 82 years 2001 stipulated four classes of water quality. As much as 7 locations of water quality monitoring during 2012-2014 in River Pesanggrahan were collected. The purpose of this study was to integrate water quality classes and spatial analysis of land use and land cover in River Pesanggrahan. Water quality characteristic were determined by using storet index and pollutant index. The study results revealed that the current water quality characteristic is class 4. River water quality class recommendation is class 3, and target river water quality class is class 2. It means that current river water characteristic can be used for irrigation, agriculture or other uses that require the same water quality with these purposes. The spatial analysis of each river segment pointed out that there is dry land farming area which is supposed to be settlement (i.e. West Jakarta, South Jakarta, and Depok). SAT-033 Monthly Distribution of Ozone over Bandung, West Java. Sri Muslimah*, Jailani (Center for Environmental Research, Bogor Agricultural University (IPB); Information Technology for Natural Resources Management, Graduate School, Bogor Agricultural University (IPB), Indonesia; [email protected]) Ozone is an atmospheric layer that serves to protect the earth. There are a lot of ozone depleting substances and sourced from human activities. Bandung recorded in ozone depleting substances derived from various sources. Before knowing the types of ozone depleting substances that exist, the author tries to determine the distribution of ozone in Bandung. The purpose of this study was to determine the distribution of ozone using satellites in Bandung. Satellite data used is Program Book 154

T h e 3 r d I n t e r n a t i o n a l S y m p o s i u m o n L I S A T 2 0 1 6 the Atmospheric Infrared Sounder (AIRS). This data is expected to show the concentration of ozone in the Bandung area so as to identifying areas in Bandung which have high ozone concentrations and can be used in disaster relief efforts leakage of ozone. SAT-034 Development of a push broom multispectral Visible-NIR System in LSA LAPAN due to Modified Response Spectrum Power Light Camera. Ahmad Maryanto*, Nugroho Widijatmiko, Wismu Sunarmodo, Rahmat Arief, Ayom Widipaminto (Bogor Agricultural University, Indonesia; [email protected]) SAT-035 Improvement of Rumpin Ground Station for Automatic Data Receiving and Nearly Full Remote of the Landsat-7/8 (LDCM) and Terra/Aqua (MODIS) to Support the Parepare Ground Station. Hidayat Gunawan*, Wismu Sunarmodo, Ali Syahputra Nasution, Andy Indradjad, Ayom Widipaminto (Indonesian National Institute of Aeronautics and Space; [email protected]). SAT-036 Monitoring Tropical Peatland Ecosystem in Regional Scale Using Multi-Temporal MODIS Data: Present Possibilities and Future Challenges. Yudi Setiawan*, Hidayat Pawitan, Lilik Budi Prasetyo, May Parlindungan, Prita Ayu Permatasari (Center for Environmental Research, Bogor Agricultural University [email protected]). Recently, the awareness on the wetland ecosystem change in tropical regions has increased considerably, especially in peat swamp area. Most studies on peat swamp forest have been focused on forest conversion or forest degradation as a single pathway, meanwhile; in the context of changes in the forestlands are the sum of several processes such as deforestation, reforestation/afforestation, regeneration of previously deforested areas, and the changing spatial location of the forest boundary. A comparison imagery taken at the different dates over the same locations for assessing those changes tends to be limited by the vegetation phenology and land-management practices. Consequently, the simultaneous analysis seems to be a way to deal with the issues above, as a means for better understanding of the dynamics changes in peat swamp area. In this study we examined the feasibility of using MODIS images during the last 14 years for detecting and monitoring the changes in peat swamp area. We identified several significant patterns that have been assigned as the specific peat swamp ecosystem. To understand the complex situations of each pattern, several vegetation dynamics patterns were characterized by physical-land characteristics, such as peat depth, land use, concessions and others. Characterizing the pathways of dynamics change in peat swamp area will allow further identification for the range of proximate and underlying factors of the forest cover change that can help to develop useful policy interventions in peat land management. Program Book 155