A COMPARISON OF HIGH-RESOLUTION TOPOGRAPHIC SURVEY METHODS TO ASSESS THE GEOMORPHIC EVOLUTION OF A [FORESTED] RIVER BEND : A SUITABILITY ANALYSIS

2016 ◽  
Author(s):  
Coty Cribb ◽  
◽  
Michael O'Neal ◽  
James E. Pizzuto
Agromix ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 125-135
Author(s):  
Yohana Theresia Maria Astuti ◽  
Tri Nugraha Budi Santosa ◽  
Dian Pratama Putra ◽  
Enny Rahayu ◽  
Agus Solifudin ◽  
...  

This study aims to evaluate the dinamics of coffee production  in Mandang, Sucen Village, Gemawang District, Temanggung on 2018 and 2019. The research was carried out at  people coffee plantation in Mandang Hamlet, Sucen Village, Temanggung. Research using survey methods. Observation of performance with 30 samples taken by purposive sampling technique on 3 clones. Land suitability analysis was carried out at 3 observation points. The results obtained are: The vegetative characteristics  of robusta coffee BP 288 and BP 409 are better than  BP 358 clones, while the robusta coffee production is the same  on various clones and  plantation location.  The long dry season  in 2018 and 2019 has an effect on the decline of the number of leaves and coffee production in 2019 compared to 2018 in Mandang Hamlet, Sucen  Village, Gemawang district, Temanggung.


Author(s):  
Maxim Altyntsev ◽  
Marina Altyntseva

The territories of oil and gas deposits are represented with complicated and diverse industrial objects. During their operation and building of new constructions it is necessary to conduct topographic survey. Various methods are used for this purpose. The selection of these methods is determined by the degree of area build-up, its size and scale of the topographic plan being created. Aerial methods of topographic surveys are relevant when mapping large territories. Terrestrial methods are used more often when surveying oil and gas objects. Among terrestrial methods classically are accepted tacheometrical survey and GNNS measurements. Terrestrial and mobile laser scanning currently gained great popularity. Introduction of laser scanning methods allowed users to significantly speed up field works keeping high accuracy of obtained data. The advantages of laser scanning application comparing to classical methods when surveying oil and gas deposits are described. It is discussed what cases of classical method application can be more preferable. To cover all the bases the description is provided on the basis of 3 deposit parts, which are different in the degree of area build-up and have different requirements for topographic plan creation as follows: scale, need to input semantic information, a format of representing the result. Introduction of new survey methods requires developing appropriate data processing techniques. As a rule, each new survey territory has its own features which should be taken into account when developing new techniques. The techniques for creating topographic plans using terrestrial laser scanning, mobile one and GNNS measurements are described.


2019 ◽  
Vol 94 ◽  
pp. 02008
Author(s):  
Teguh Hariyanto ◽  
Akbar Kurniawan ◽  
Cherie Bhekti Pribadi ◽  
Rizal Al Amin

In the rapidly evolving technology era, various survey methods have been widely used one of them by remote sensing using satellite. It is known that the satellite image recording process is covered by rides (satellites) moving over the Earth's surface at hundreds of kilometers, causing satellite imagery to have geometric distortion. To reduce the effect of geometric distortion of objects on the image, geometric correction by orthorectification is done. Pleiades is a satellite of high resolution satellite image producer made by Airbus Defense & Space company. The resulting satellite imagery has a 0.5 meter spatial resolution. As a reference for the more detailed space utilization activities of space utilization arranged in the Regional Spatial Plans, Detailed Spatial Plans was created with the 1: 5000 scale map which has been governed by the Geospatial Information Agency. In the process of orthorectifying satellite imagery for this 1: 5000 scale map, ground control or Ground Control Point (GCP) is used for geometric correction and Digital Elevation Model (DEM) data. In this research, the optimal number of GCP usage for orthorectification process in Rational Function method is 21 GCP using 2nd order polynomial


2007 ◽  
Vol 72 (3) ◽  
pp. 539-561 ◽  
Author(s):  
Kenneth L. Kvamme ◽  
Stanley A. Ahler

A four-year program of remote sensing at the Double Ditch State Historic Site (32BL8) demonstrates the utility of combined prospecting methods for understanding complex settlements when combined with traditional excavation methods. Magnetic gradiometry revealed countless subterranean storage pits, hearths, and two previously unknown fortification systems that vastly increase the settlement's area and projected population to perhaps 2,000 individuals. Electrical resistance surveys helped define middens, other depositional areas, houses, and earth-borrowing pits. Ground-penetrating radar yielded details about ditch, house, and mounded midden interior forms. Aerial survey from a powered parachute acquired high-resolution digital color and thermal infrared imagery. The former distinguished houses, borrow pits, and ditches from middens and fill areas by changes in vegetation; the latter did the same through temperature variations that also highlighted historic excavations. High-resolution topographic survey allowed documentation of topographic expressions caused by ditches, houses, borrow pits, and mounds. The remote sensing program reduced excavation costs by targeting features. Excavations confirmed anomaly identifications and established a chronology that documents late-fifteenth-century origins to an ultimate contraction in the eighteenth century, with abandonment after a smallpox outbreak about A.D. 1785. Evidence suggests that large mounds formed integral components of the village"s defenses. Excavations also reveal extensive earth moving for mound building, earthlodge coverings, and other reasons still unclear. This practice caused the truncation or obliteration of many earlier archaeological features and forces realization that long-occupied settlements were fluid through time with continual reworking of deposits, and complex depositional, use, and formation histories.


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