scholarly journals Infrared Aerial Photograph Application for Prediction of Runoff Coefficient at Wuryantoro Catchment, Wonogiri

2004 ◽  
Vol 16 (2) ◽  
Author(s):  
Sugiharto Budi Santoso

This research was carried out in Wuryantoro Watershed, Wonogiri. The goal of this study is to examine the remote sensing technology capability to obtain the physical characteristics data of watershed in the prediction of runoff coefficient using cook method. The physical characteristics is topography (relief), landcover, water storage, and infiltration. The physical characteristis is interpreted on infrared aerial photography on scale 1 : 10.000 based on element of interpretation i.e. tone, texture, size, shape, pattern, site, and association. The result of the prediction is tested by comparing them with the data of field measurement result. The accuraccy of the result of aerial photo interpretation of physical characteristics of watershed can be obtained as follows 1) the accuracy of the interpretation of landuse 88,5%; 2) the accuracy of slope interpretation 87.67%. The accuracy of prediction of the runoff coeficient 86.9%.

2012 ◽  
Vol 599 ◽  
pp. 728-731
Author(s):  
Zhong Du ◽  
Hui Xiu Wu ◽  
Zeng Chuan Dong ◽  
De Shu Sun

The hydrological research of ungauged basins became the new topic of international hydrological plan, the flood investigation can effectively make up for the information insufficient of the contemporary remote sensing technology and traditional statistical interpolation techniques. Take Dasha River rainstorm for example, water surface slope was monitored of 8‰ by slope-area method, the peak flow was calculated of 1830 m3/s. According to the measured multi-peak flood hydrograph simulates single peak hydrograph and five points probable, the flood volume was calculated of 109 million m3, the runoff coefficient is 0.84 and runoff depth is 505 mm. The river basin has 250 mm previous rainfall, and the underlying surface was saturated, so the result indicated that it accord with runoff yield and concentration theory. The method can be extended for medium and small size river.


2020 ◽  
Vol 9 (1) ◽  
pp. 69
Author(s):  
Trida Ridho Fariz ◽  
Retnadi Heru Jatmiko ◽  
Estuning Tyas Wulan Mei ◽  
Ardhi Arnanto ◽  
Ramlah Ramlah ◽  
...  

 Remote sensing technology such as small format aerial photography (SFAP) from unmanned aerial vehicle (UAV) or drone can be a solution in accelerating the land parcel mapping in Indonesia. This study aims to determine the level of geometric and planimetric accuracy of SFAP data output in land parcel mapping and describe the step of data processing. The results showed that in land parcel mapping, the main SFAP output data is orthophoto. Therefore, the processing should not need to do the dense cloud process, the orthophoto build process can use DEM from sparse cloud for time efficiency and reduce the relief displacement effect. The orthophoto geometry accuracy is CE90 of 0.44, so it is very well used for mapping 1: 2500 scale, while DSM has a LE90 value of 2.80. Planimetry accuracy of the land parcel distance has met the tolerance standard, while planimetry accuracy of the land parcel area there is 1 parcel that does not meet the tolerance standard. However, in general, SFAP can be used as a basis for land parcel mapping in slightly hilly areas such as Bompon watershed.Keywords:     Small format aerial photo, land parcel, geometric accuracy, planimetric accuracy Teknologi penginderaan jauh seperti foto udara format kecil (FUFK) dari pesawat nir awak bisa menjadi solusi dalam percepatan pemetaan bidang tanah di Indonesia. Penelitian ini bertujuan untuk mengetahui tingkat ketelitian geometrik dan planimetrik data keluaran FUFK dalam pemetaan bidang tanah serta mendeskripsikan tahapan-tahapan pengolahan datanya. Hasil penelitian menunujukkan bahwa dalam pemetaan bidang tanah, data keluaran FUFK yang utama adalah ortofoto. Oleh karena itu sebaiknya proses pengolahan tidak perlu melakukan proses dense cloud, proses build orthophoto bisa menggunakan DEM dari sparse cloud untuk efisiensi waktu serta mengurangi efek relief displacement. Ketelitian geometri ortofoto yaitu CE90 sebesar 0,44, sehingga sangat baik digunakan untuk pemetaan skala 1:2500, sedangkan DSM memiliki nilai LE90 sebesar 2,80. Ketelitian planimetrik terhadap jarak bidang tanah telah memenuhi standar toleransi, sedangkan ketelitian planimetrik terhadap luas bidang tanah terdapat 1 bidang yang tidak memenuhi standar toleransi. Walaupun begitu, secara umum FUFK bisa digunakan sebagai dasar pemetaan bidang tanah di wilayah yang sedikit berbukit seperti Sub DAS Bompon.Kata Kunci:  Foto udara format kecil, bidang tanah, ketelitian geometrik, ketelitian planimetrik.


1997 ◽  
Author(s):  
Tom Wilson ◽  
Rebecca Baugh ◽  
Ron Contillo ◽  
Tom Wilson ◽  
Rebecca Baugh ◽  
...  

1995 ◽  
Vol 32 (2) ◽  
pp. 77-83
Author(s):  
Y. Yüksel ◽  
D. Maktav ◽  
S. Kapdasli

Submarine pipelines must be designed to resist wave and current induced hydrodynamic forces especially in and near the surf zone. They are buried as protection against forces in the surf zone, however this procedure is not always feasible particularly on a movable sea bed. For this reason the characteristics of the sediment transport on the construction site of beaches should be investigated. In this investigation, the application of the remote sensing method is introduced in order to determine and observe the coastal morphology, so that submarine pipelines may be protected against undesirable seabed movement.


2013 ◽  
Vol 415 ◽  
pp. 305-308
Author(s):  
Kun Zhang ◽  
Hai Feng Wang ◽  
Zhuang Li

With remote sensing technology and computer technology, remote sensing classification technology has been rapid progress. In the traditional classification of remote sensing technology, based on the combination of today's technology in the field of remote sensing image classification, some new developments and applications for land cover classification techniques to make more comprehensive elaboration. Using the minimum distance classifier extracts of the study area land use types. Ultimately extracted land use study area distribution image and make its analysis and evaluation.


Author(s):  
Xiao Sun ◽  
Yunlin Zhang ◽  
Kun Shi ◽  
Yibo Zhang ◽  
Na Li ◽  
...  

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