Mapping Porosity Values on Coast of Sampang District Using Satellite Image Data

Abstract

Porosity soil is well known as soil properties and an indicator of the quality of soil. Applying porosity test in coastland area of Sampang District is highly needed, considering that the livelihoods of the people in Sampang are mostly farmers and also the development of village has recently grown rapidly. In this study, the mathematical model of porosity would be obtained by using the data of surface reflectance Aqua Modis. Using the Aqua Modis can provide an overview of porosity value in all over Madura Island that can be used as reference and as actual data in designing structures (road pavement) in the future. The porosity value were processed with three bands that have wavelength 445 mm, 530 mm and 665 mm. The experimental result shows that most of soil type on coastland area of Sampang is fine sand. The most optimum regression from the mathematical model was exponential model with regression = 0.2911. This result showed that applying global mapping with satellite image data was able to provide an overview of porosity value in Sampang District. This data plays an important role in the future for increasing the quality of soil and also as a reference for construction design.

Temporal analysis of total suspended solids (TSS) at Ujung Pangkah Beach, Gresik, from 2016 - 2020 using aqua MODIS image data

“…which are widely used for natural resource monitoring such as Terra MODIS This study aims to map the distribution of total suspended solids that occur on the coast at Ujung Pangkah Gresik on the east side which is directly adjacent to Bangkalan and Madura Strait, and from this research, a suitable mathematical model is intended to describe changes in total suspended solid concentration using imagery. Low-resolution satellites such as Aqua MODIS, where the same research was conducted on the northern coast using Landsat 8 satellite imagery [11] (Wibisana et al, 2019) also in the Bangkalan Madura area [12] (Solin et al, 2018), in addition to that from this study The distribution of TSS values in milligrams per liter will be mapped from the best mathematical model generated with Aqua MODIS image data.…”