Buffer in QGIS

Do not yet to know where it comes, but somebody else in SO found interesting findings:

1 metre is equivalent to 0.00001 in Buffer Distance units.

How to synthesize Radiometric Terrain Corrected (RTC) image

Radiometric Terrain Corrected (RTC) image is fundamental in SAR temporal analysis. It provides basic, consistent data for further analyses including change detection or time-series investigation from detected SAR data.

Proposed development of RTC in SNAP software is as follows:

  1. Check whether SAR data requires external orbital improvement. This is the case of ERS, Envisat or Sentinel-1, for instance
  2. Calibration: Use Radar >> Radiometric >> Calibrate menu. Output must include beta nought (beta-zero)
  3. Multilook, due to imbalance DEM and image resolutions (most likely). Use Radar >> Multilooking
  4. Terrain Flattening: Use Radar >> Radiometric >> Radiometric Terrain Flattening
  5. Terrain Correction: Use Radar >> Geometry >> Terrain Correction >> Range-Doppler Terrain Correction. The output is in gamma-nought (gamma-zero)

2017-01-02_000916

Book Chapters

E Rustiadi, AM Zain, BH Trisasongko, I Carolita. 2002. Land Cover Change in Jabotabek Region. In: Land Use/Cover Changes in Selected Regions in the World. Volume II. Y Himiyama, A Mather, I Bicik and EV Milanova (Eds.) IGU-LUCC International Geographical Union.

DR Panuju, LS Iman, BH Trisasongko, B Barus, D Shiddiq. 2010. Simulasi Data Losat Untuk Pemantauan Pesisir (Translation: Simulation of LOSAT data for coastal monitoring). In: Satelit Mikro untuk Mitigasi Bencana dan Ketahanan Pangan (Eds. AP Sunaryanti, S Tanoemihardja). IPB Press, Bogor, Indonesia. ISBN 978-979-1458-35-1. (in Indonesian)

DR Panuju, BH Trisasongko, LS Iman, B Barus, D Shiddiq. 2011. Optimasi Klasifikasi Numerik QUEST pada Data Simulasi LISAT. In: Satelit untuk Mitigasi Bencana, Pemantauan Maritim dan Ketahanan Pangan (Eds. AP Sunaryanti, S Tanoemihardja), p. 177-189. IPB Press, Bogor, Indonesia. ISBN 978-979-493-352-7. (in Indonesian)

BH Trisasongko, DR Panuju, MA Raimadoya, TM Kadri, K Gandasasmita. 2011. Kajian Potensi Kanal Red Edge Untuk Pemantauan Padi. In: Satelit untuk Mitigasi Bencana, Pemantauan Maritim dan Ketahanan Pangan (Eds. AP Sunaryanti, S Tanoemihardja), p. 49-59 . IPB Press, Bogor, Indonesia. ISBN 978-979-493-352-7. (in Indonesian)

DR Panuju, BH Trisasongko. 2012. Seasonal Pattern of Vegetative Cover from NDVI Time-series. In: Tropical Forests (Eds. P Sudharsana, M Nageshwara-Rao, JR Soneji). p. 255-268. Intech, Rijeka, Croatia. ISBN 979-953-307-651-4. DOI: 10.5772/30344. [link]

Journal Publications

BH Trisasongko. 2004. On the Textural Segmentation for High-Resolution Panchromatic Imagery. Journal of GIS, Remote Sensing and Dynamic Modeling, 4:22-35.

MA Raimadoya, B Trisasongko, D Shiddiq, DR Panuju, R Maulida. 2004. Pengolahan DSM dengan Interferometri SAR (InSAR) Antariksa untuk Mekanisme Pembangunan Bersih (MPB) Protokol Kyoto. Jurnal Ilmu Tanah dan Lingkungan, 6:39-45. (Translation: Digital Surface Modeling using Spaceborne Interferometric SAR for Clean Development Mechanism of Kyoto Protocol).

E Rustiadi, DR Panuju, BH Trisasongko, RD Djakapermana. 2006. Land Cover Change and Coastal Spatial Zoning in Aceh-Indonesia in the Aftermath of the Tsunami. Advances in Earth Science, 21:192-200. [pdf]

BH Trisasongko, BG Lees and DJ Paull. 2006. Polarimetric classification in a tailings deposition area at the Timika mine site, Indonesia. Mine Water and the Environment, 25:246-250. DOI: 10.1007/s10230-006-0140-4. [link]

BH Trisasongko, BG Lees and DJ Paull. 2007. Discrimination of scatterer responses on tailings deposition zone. Sensing and Imaging, 8:111-120. DOI: 10.1007/s11220-007-0037-8. [link]

MA Raimadoya, BH Trisasongko, Nurwadjedi, L. Zakharova. 2008. Peta aplikasi SAR tandem Indonesia (PASTI): PeTop dan TanCer. Jurnal Ilmiah Geomatika, 14(1):9-18. (Translation: Application of Tandem SAR in Indonesia: Topographic Map and Precision Agriculture)

MA Raimadoya, BH Trisasongko. 2008. Kontribusi radar pencitra dalam implementasi Protokol Kyoto. Jurnal Ilmiah Geomatika, 14(2):17-27. (Translation: Contribution of imaging radar in the implementation of the Kyoto Protocol)

DR Panuju, BH Trisasongko. 2008. The use of statistical tree methods on rice field mapping. Jurnal Ilmiah Geomatika, 14(2):75-84.

BH Trisasongko. 2009. Tropical mangrove mapping using fully polarimetric radar data. ITB Journal of  Science, 41A(2):98-109. DOI: 10.5614/itbj.sci.2009.41.2.4. [pdf]

B Tjahjono, AHA Syafril, DR Panuju, A Kasno, BH Trisasongko, F Heidina. 2009. Pemantauan lahan sawah menggunakan citra ALOS AVNIR-2. Jurnal Ilmiah Geomatika, 15(2):1-8. (Translation: Rice field monitoring using ALOS AVNIR-2)

DR Panuju, F Heidina, BH Trisasongko, B Tjahjono, A Kasno, AHA Syafril. 2009. Variasi nilai indeks vegetasi MODIS pada siklus pertumbuhan padi. Jurnal Ilmiah Geomatika, 15(2):9-16. (Translation: Variation of vegetative index of MODIS on rice growth monitoring)

BH Trisasongko. 2010. The use of polarimetric SAR data for forest disturbance monitoring. Sensing and Imaging, 11:1-13, DOI: 10.1007/s11220-010-0048-8. [link]

DR Panuju, BH Trisasongko, B Susetyo, MA Raimadoya,  BG Lees. 2010. Historical fire detection of tropical forest from NDVI time-series data: Case study on Jambi, Indonesia. ITB Journal of Science, 42A(1):47-64. DOI: 10.5614/itbj.sci.2010.42.1.5. [pdf]

BH Trisasongko, DR Panuju, B Tjahjono, B Barus, H Wijayanto, MA Raimadoya, Irzaman. 2010. Simulasi pemanfaatan data LOSAT untuk pemetaan padi. Makara Seri Teknologi, 14(2):116-120. (Translation: Simulation of LOSAT data exploitation on rice field mapping) [pdf]

BH Trisasongko. 2011. Autonomous coastal land cover assessment using polarimetric decomposition of SAR data. ITB Journal of Engineering Science, 43(2):101-112. DOI: 10.5614/itbj.eng.sci.2011.43.2.2. [pdf]

BH Trisasongko, DR Panuju, LOS Iman. 2012. Satellite monitoring of small-scale farming systems in Subang, Indonesia. ITB Journal of Science, 44A(1):67-78. DOI: 10.5614/itbj.sci.2012.44.1.6. [pdf]

BH Trisasongko, DR Panuju. 2012. Performance of Wishart classification algorithm to map mangrove forest using fully polarimetric Synthetic Aperture Radar at C-, L- and P-bands. International Journal of Electrical Engineering and Informatics, 4(3): 474-482. [pdf]

R Prachmayandini, BH Trisasongko. 2012. Pemantauan pola penanaman padi melalui analisis hamburan balik citra ALOS PALSAR ScanSAR. Globe, 14(1): 70-77 (in Indonesian)

DR Panuju, K Mizuno, BH Trisasongko. 2013. The dynamics of rice production in Indonesia 1961-2009. Journal of the Saudi Society of Agricultural Sciences, 12(1): 27-37. DOI: 10.1016/j.jssas.2012.05.002. [pdf]