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All Journal Seminar Nasional Informatika (SEMNASIF) UNEJ e-Proceeding Journal of Applied Geospatial Information Jurnal Sains & Teknologi Modifikasi Cuaca Jurnal Matematika Sains dan Teknologi International Journal of Remote Sensing and Earth Sciences (IJReSES)
Ardila Yananto
UGM Yogyakarta
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Engineering Environmental Science Mathematics Physics Other

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ANALYSIS OF EL NIÑO EVENT IN 2015 AND THE IMPACT TO THE INCREASE OF HOTSPOTS IN SUMATERA AND KALIMANTAN REGION OF INDONESIA Ardila Yananto; Saraswati Dewi
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Global climate in 2015 was greatly affected by the occurrence of El Niño Southern Oscillation. The appearance of El Niño has been widely predicted since 2015 by various research institutions in the world that work in the field of Meteorology and Climatology. In early September 2015, experts from World Meteorological Organization (WMO) stated that the El Niño occurred in 2015 will be one of the strongest El Niño in history. Based on a calculation, the value of Sea Surface Temperature (SST) in the waters of the East-Central Pacific Ocean tends to be warmer more than 2 degrees Celsius from the average value. El Niño that impact most areas of Indonesia will always be associated in drought due to reduced rainfall intensity. Drought, in further, has resulted in increasing hotspots significantly compared to previous years, especially in the Sumatera and Kalimantan region of Indonesia, creating smog disaster in 2015. The main objective of this research was to analyze the occurrence of El Niño in 2015 and its influence on increase of hotspot in Sumatera and Kalimantan both in temporal and spatial scale. This research use the integration of Meteorological-Climatological and Geographic Information Systems Science based, Nino -3.4, Sea Surface Temperature (SST) and Wind Gradient for El Niño events analysis, also MODIS Satellite high accuracy data for Hotspot distribution analysis. It can be seen that there was a most powerful El Niño phenomenon compared the history that the peak event in November 2015 with value 2.95 of Nino -3.4. Gradient Wind from June to December 2015 has shown the movement of water vapor Pacific Ocean tendency towards the East, resulting decrease of rainfall intensity in the Pacific Ocean in the Central and Western region including Indonesia. Based on the analysis both spatial and temporal, it's shown that South Sumatera and Central Kalimantan are regions with highest increase in total hotspot, the total hotspot increased by 363% for South Sumatera and by 231% for Central Kalimantan.
Forest and Land Fire Danger Mapping Based on Land Physical Parameters in Sumatera and Kalimantan Region of Indonesia Ardila Yananto; M. Bayu Risky Prayoga; Budi Harsoyo
Journal of Applied Geospatial Information Vol 1 No 2 (2017): Journal of Applied Geospatial Information (JAGI)
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jagi.v1i2.521

Abstract

Indonesia is a country that vulnerable to land and forest fires danger. This is not out of the presence of peatland in Indonesia is quite wide, which are mostly located in Sumatara and Kalimantan. The nature of peatlands are capable to store water in large quantities, but the surface dries quickly and become flammable during the dry season. This research aims to perform mapping areas that vulnerable to land and forest fires danger based on the physical parameters. Based on the results obtained can be used as the basis for develop land and forest fires early warning system in Indonesia. This research use GIS (Geographic Information System) for processing mapping of physical parameters which consists of Land Use Map, Topography Map and Soil Map in Sumatra and Kalimantan to get the forest and land fires danger map. The results of the mapping areas that vulnerable to forest and land fire based on the physical parameters resulting from this study have uniform patterns with the distribution and density of hotspots in the Sumatra and Kalimantan over the last 10 years (2006-2015). This is reinforced by the result of mapping accuracy test, where the percentage number of hotspots during the last 10 years both in Sumatera and Kalimantan area which is exactly vulnerable up to very vulnerable to land and forest fires danger by 74%.
GROUNDWATER LEVEL ESTIMATION MODEL ON PEATLANDS USING SAR SENTINEL-1 DATA IN PART OF RIAU, INDONESIA Yananto, Ardila; Sartohadi, Junun; Marhaento, Hero; Awaluddin, .
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.a3618

Abstract

The character of peatlands has the ability to store large amounts of water, but the surface of the peatlands dries quickly and easy to burn during the dry season. Research aims to build a model to estimate groundwater level of peatland. Statistical analysis of Karl Pearson Product Moment correlation test was used to determine the relationship between the back scatter values and the Surface Soil Moisture (SSM) values from the Sentinel-1 SAR data processing with the groundwater level values measured using the Sipalaga instrument. Regression analysis was used to determine the model that could be used to estimate the groundwater level of peatlands in the study area based on the results of Sentinel-1 SAR data processing. The results showed that the Sentinel-1 SAR data with the Sigma_0 format in decibel (db) units with VV polarization had the highest correlation value with the groundwater level data of peatlands measured using the Sipalaga instrument, with a value of r -0.648 (moderate correlation). Model to estimate water level of peatlands was Y = -101.629 + (-7.414 x), where 'Y' was the groundwater level of peatlands in the study area and 'x' was the Sentinel-1 SAR data with Sigma_0 format in decibel (db) units with VV polarization. The spatial and temporal patterns of peatlands groundwater level in the study area from Sentinel-1 SAR data showed peatlands that to survive at a water level <40 cm was in the area around of the Rokan River and also in plantation areas, especially Acacia plantations, where canals were made to irrigate and land management.
SUAR MODIFIKASI CUACA CoSAT 1000 AMAN TERHADAP STATUS MUTU AIR DANAU TOBA, SUMATERA UTARA: TINJAUAN STATUS MUTU AIR PADA PELAKSANAAN MODIFIKASI CUACA BERBASIS SUAR CoSAT-1000 DI DAERAH TANGKAPAN AIR DANAU TOBA Dwipa Soehoed; Satyo Nuryanto; Ardila Yananto
Jurnal Sains & Teknologi Modifikasi Cuaca Vol. 23 No. 2 (2022): December 2022
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jstmc.v23i2.5538

Abstract

Implementing Weather Modification Technology (TMC) using hygroscopic flare, which has chemical compounds Sodium Chloride as a hygroscopic seeding material, Potassium, Magnesium, etc., has been applied several times in TMC operations. For the first time, the hygroscopic flare was made by PT. Pindad, called  Cloud Seeding Agent Tube 1000 (CoSAT 1000), has been used on TMC operation in Lake Toba Catchment Area to overcome Lake Toba's water deficit in 2021. To find out the impact that might be caused by the use of the CoSAT 1000, an analysis of the water parameter and quality has been carried out from samples of rainfall, river, and lake in the period before, during, and after the implementation of TMC activities. Based on the criteria for water quality standard requirements in Government Regulation number 22 of 2021 and Minister of Environment Guidelines for Determining Water Quality Status number 115 of 2003, the results obtained from the quality parameter test and water quality status that were taken have met the class 1 and 2 water quality standards, as well as with class A water quality status. It is concluded that the use of CoSAT-1000 flare seedlings in TMC operations does not have any negative impact on water quality status.
Co-Authors . Awaluddin, . Ahmad Cahyadi Ahmad Cahyadi **) Ari Nugroho Ari Nugroho Budi Harsoyo Budi Harsoyo Budi Harsoyo Budi Harsoyo Della Ananto Kusumo Della Ananto Kusumo, Della Ananto Destianingrum Ratna P Destianingrum Ratna P, Destianingrum Dwipa Soehoed Emilya Nurjani Henky Nugraha Henky Nugraha, Henky Hero Marhaento, Hero Ibnu Athoillah Ibnu Athoillah Junun Sartohadi M. Bayu Risky Prayoga M. Bayu Rizky Prayoga M. Bayu Rizky Prayoga M. Bayu Rizky Prayoga, M. Bayu Rizky Muhammad Sufwandika Wijaya Muhammad Sufwandika Wijaya Rini Mariana Sibarani Rini Mariana Sibarani Rini Mariana Sibarani, Rini Mariana Samba Wirahma Samba Wirahma, Samba Saraswati Dewi Saraswati Dewi Saraswati Dewi, Saraswati Satyo Nuryanto