Research tests of the Geoscan 101, the Geoscan 201 hardware-and-software complexes

During the recent decade, unmanned aerial vehicles (UAV) have been widely implemented in practice of the aerial survey for the purposes of inventory and mapping. This led to a variety of aerial survey results in terms of both aerial survey parameters and accuracy. Under these conditions, the task of assessing the accuracy of the final product obtained from aerial photographs with a UAV, for example, an orthophoto or a digital elevation model becomes urgent. The Federal State Budgetary Institution “Federal Scientific-Technical Center of Geodesy, Cartography and Spatial Data Infrastructure”, having a metrological service accredited by Rosstandart for the right to conduct metrological certification of measurement methods and metrological examination of documents, makes research tests of hardware and software for digital aerial survey and photogrammetric processing, which determine the values of metrological qualities of hardware and software complexes. The authors present the results of such tests as applied to hardware-andsoftware complexes based on the Geoscan 101 UAV and the Geoscan 201 UAV equipped with Sony DSC RX-1 and Sony DSC-RX1RM2 cameras. The accuracy indicators were obtained for orthophotos, digital surface and relief models, coordinates of targeted and non targeted points of land boundaries and building contours for all land categories and permitted uses of land parcels in accordance with the requirements of the Order of the Ministry of Economic Development of the Russia from 01.03. 2016 No 90.

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Glacier geometry and elevation changes on Svalbard (1936–90): a baseline dataset

Annals of Glaciology ◽

10.3189/172756407782871440 ◽

2007 ◽

Vol 46 ◽

pp. 106-116 ◽

Cited By ~ 83

Author(s):

C. Nuth ◽

J. Kohler ◽

H.F. Aas ◽

O. Brandt ◽

J.O. Hagen

Keyword(s):

Aerial Survey ◽

Aerial Photographs ◽

Time Interval ◽

Topographic Map ◽

Elevation Change ◽

Regional Variability ◽

Random Components ◽

Elevation Changes ◽

Norwegian Polar Institute ◽

Elevation Model

AbstractThis study uses older topographic maps made from high-oblique aerial photographs for glacier elevation change studies. We compare the 1936/38 topographic map series of Svalbard (Norwegian Polar Institute) to a modern digital elevation model from 1990. Both systematic and random components of elevation error are examined by analyzing non-glacier elevation difference points. The 1936/38 photographic aerial survey is examined to identify areas with poor data coverage over glaciers. Elevation changes are analyzed for seven regions in Svalbard (~5000 km2), where significant thinning was found at glacier fronts, and elevation increases in the upper parts of the accumulation areas. All regions experience volume losses and negative geodetic balances, although regional variability exists relating to both climate and topography. Many surges are apparent within the elevation change maps. Estimated volume change for the regions is –1.59±0.07km3 a–1 (ice equivalent) for a geodetic annual balance of –0.30ma–1w.e., and the glaciated area has decreased by 16% in the 54 year time interval. The 1936–90 data are compared to modern elevation change estimates in the southern regions, to show that the rate of thinning has increased dramatically since 1990.

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Infrastructural Organization of Geospatial Data in The Global Level: A Case Study of Albanian Global Mapping Dataset

Geosfera Indonesia ◽

10.19184/geosi.v5i1.16901 ◽

2020 ◽

Vol 5 (1) ◽

pp. 106

Author(s):

Milot Lubishtani ◽

Bashkim Idrizi ◽

Subija Izeiroski ◽

Fitore Bajrami Lubishtani

Keyword(s):

Spatial Data ◽

Spatial Data Infrastructure ◽

Geospatial Data ◽

Global Level ◽

Data Set ◽

Data Infrastructure ◽

Creative Commons ◽

Global Mapping ◽

The Right

Today, the development of economic and financial situation concerning the protection of environment and natural resources in a wider scope depends on the use of geospatial data. One of the main aims of the infrastructural organization of geospatial data is to provide users to be capable of acquiring complete, exact and updated dataset at the right time. This is necessary for providing an ideal environment, where all stakeholders can work collaboratively in an effective way, in order to solve environmental issues and to achieve their targets. Global Mapping (GM), a project established by United Nations, is one of the crucial contributions to the development of Global Spatial Data Infrastructure (GSDI). This case study on Albanian GM dataset was aimed at performing analyses of infrastructural organization of geospatial data in global-intercontinental level. Data standardization of GM as contributor of GSDI was analyzed through developed Albanian GM dataset. The main components taken into consideration for performing research analyses were data and metadata, technology, institutional framework, policies, interoperability, network services, search opportunities, and data sharing within GSDI. The main findings of this study are the necessity of infrastructural organization of geospatial data in the global level, known as GSDI, by including official geospatial datasets developed by the national mapping organizations of countries all over the world, in order to be used for environmental monitoring and protection, as well as for early warning management in international level. Finally, based on the research results, four conclusions for GSDI are offered, in order to be considered as guideline for further development of unified and globally homogeneous infrastructure of spatial data set. Keywords: GSDI; GM; spatial data infrastructure; Albania. Copyright (c) 2020 Geosfera Indonesia Journal and Department of Geography Education, University of Jember This work is licensed under a Creative Commons Attribution-Share A like 4.0 International License

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Global Spatial Data Infrastructure: Issues for Space Law and International Cooperation

57th International Astronautical Congress ◽

10.2514/6.iac-06-e6.3.05 ◽

2006 ◽

Author(s):

Satya Sagar Priyatham Singamsetty ◽

Debarupa Banerjee

Keyword(s):

International Cooperation ◽

Spatial Data ◽

Spatial Data Infrastructure ◽

Data Infrastructure ◽

Space Law

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STUDY OF THE LANDSLIDE MORPHOLOGY BASED ON GNSS DATA AND AIRBORNE SOUNDING (ON THE EXAMPLE OF A SECTION OF THE PROTVA RIVER VALLEY)

Engineering survey ◽

10.25296/1997-8650-2018-12-5-6-50-57 ◽

2018 ◽

Vol 12 (5-6) ◽

pp. 50-57 ◽

Cited By ~ 1

Author(s):

I. S. Voskresensky ◽

A. A. Suchilin ◽

L. A. Ushakova ◽

V. M. Shaforostov ◽

A. L. Entin ◽

...

Keyword(s):

Digital Elevation Model ◽

Geodetic Network ◽

Aerial Survey ◽

River Valley ◽

Ease Of Use ◽

Digital Elevation ◽

Loose Deposits ◽

Positioning Method ◽

Landslide Body ◽

Elevation Model

To use unmanned aerial vehicles (UAVs) for obtaining digital elevation models (DEM) and digital terrain models (DTM) is currently actively practiced in scientific and practical purposes. This technology has many advantages: efficiency, ease of use, and the possibility of application on relatively small area. This allows us to perform qualitative and quantitative studies of the progress of dangerous relief-forming processes and to assess their consequences quickly. In this paper, we describe the process of obtaining a digital elevation model (DEM) of the relief of the slope located on the bank of the Protva River (Satino training site of the Faculty of Geography, Lomonosov Moscow State University). To obtain the digital elevation model, we created a temporary geodetic network. The coordinates of the points were measured by the satellite positioning method using a highprecision mobile complex. The aerial survey was carried out using an unmanned aerial vehicle from a low altitude (about 40–45 m). The processing of survey materials was performed via automatic photogrammetry (Structure-from-Motion method), and the digital elevation model of the landslide surface on the Protva River valley section was created. Remote sensing was supplemented by studying archival materials of aerial photography, as well as field survey conducted immediately after the landslide. The total amount of research results made it possible to establish the causes and character of the landslide process on the study site. According to the geomorphological conditions of formation, the landslide refers to a variety of landslideslides, which are formed when water is saturated with loose deposits. The landslide body was formed with the "collapse" of the blocks of turf and deluvial loams and their "destruction" as they shifted and accumulated at the foot of the slope.

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