Application of the reconnaissance technique using camouflage and statutory uniforms in the operation of a UAV by A. М. Tsyrkulienko, O. О. Les, V. V. Mushka

“…The article analyses the effectiveness of different types of camouflage in countering reconnaissance using UAVs in different terrain; the optimal camera angle and the optimal flight altitude of UAVs for effective counteraction to the camouflage properties of the respective camouflage in different terrain are determined. …”
Get full text

Projet du parc linéaire de l’humedal Juan Amarillo, 2000-2018, Bogota, Colombie by Eduardo Samper Martinez

“…This paper presents an outline of the cultural and eco-systemic context of the wetlands (humedales) of the savannah (sabana) district of the city of Bogota situated at an altitude of 2,600 metres with a surface area of 1,800 square kilometres. …”
Get full text

The Study of Tourism Comfort Climate Index in Desert Area (Case Study: Yazd Province) by Esmail Heydari Alamdarloo, Hassan Khosravi, Sahar Nasabpour Molaei

“…Generally, the mountainous area with an altitude of more than 2,700 to 3,000 meters and their surrounding areas when rainfall and lower temperatures is not a limiting factor have the best tourism conditions in the dry season. …”
Get full text

Spatio-temporal Evolution and Matching Characteristics of Water and Heat Resources in Tibet Plateau in Recent 48 Years by DONG Lingxiao, ZHANG Yanmin, JIANG Peidong, DONG Qianjin

“…Due to the special high altitude,low atmospheric pressure,strong radiation and sufficient sunshine,the water and heat resources in the Tibet Plateau is very rich,and the ecosystem of the Tibet Plateau is very sensitive to climate change and human activities.Therefore,the study on the spatial-temporal evolution and matching characteristics of water and heat resources in Tibet Plateau is of great significance to the development of local agriculture and animal husbandry.This paper calculates the reference crop evapotranspiration from 1970 to 2017 in Tibet Plateau by using Penman-Monteith formula,analyzes the spatial distribution and temporal variation of the reference crop evapotranspiration,and the spatial and temporal patterns of water and heat indictors such as rainfall,temperature,reference crop evapotranspiration and moisture index,establishes the matching model of water and heat resources in Tibet Plateau by considering the factors of rainfall,air temperature and evaporation,and studies the matching characteristics of water and heat resources in Tibet Plateau through the model.The results show that the spatial distribution of water and heat resources in the Tibet plateau basically presents two kinds of characteristics:large in the southeast,small in the northwest,or large in both ends of the southeast and northwest,and small in the central region,and shows a significant upward trend in time.The matching of water and heat resources gradually improves from northwest to southeast,with a significant enhanced trend from 1970 to 2017,which are favorable to the development of local agriculture and animal husbandry.…”
Get full text

GPS-SBAS-Based Orbit Determination for Low Earth Orbiting Satellites by Mingyu Kim, Jeongrae Kim

“…To use the SBAS correction for low Earth orbit (LEO) satellites, the correction, especially the ionosphere correction, must be adjusted for the LEO altitude. We apply modified SBAS data to LEO satellite onboard navigator to improve the positioning accuracy of a LEO satellite for possible real-time use. …”
Get full text

Agro-ecological zonation of canola cultivation in Ardebil Plain by Bhroz Sobhani, fatemeh nasiri

“…Climate and topography are main environmental components which altitude and cultivation product generation capability are depend their in every region.  …”
Get full text

CZECHIA: CHANGES IN LANDSCAPE USE IN THE TRANSFORMATION PERIOD by IVAN BIČÍK

“…Main regional differences are visible between lowlands and regions of higher altitude, in lower level plays important role distance from main core regions and main axis of social economic development. …”
Get full text

Évolution des itinéraires d’accès aux refuges du bassin de la Mer de Glace (massif du Mont Blanc, France) by Jacques Mourey, Ludovic Ravanel

“…Glacial shrinkage and the gravitational processes associated with it, which are characteristic of global warming effects in high mountain environments, are affecting mountaineering routes more and more, including access routes to high altitude refuges. These changes have almost never been studied. …”
Get full text

The Relationship between the Atmospheric Heat Source over Tibetan Plateau and the Westerly-Monsoon Evolution in August and Its Physical Mechanism by Chunxue Wang, Yueqing Li

“…The synthetic analysis indicated that when the AHS was strong, a positive anomaly of a horizontal temperature gradient appeared over TP, which was conducive to the southward shift of the high-altitude temperature gradient center, resulting in the southward position of the axis of the 200 hPa westerly jet, and an upward and downward inclined westerly anomaly zone appeared from the south slope of TP to the main body and its north slope. …”
Get full text

Effects of Forbush Decreases on the Global Electric Circuit by J. Tacza, G. Li, J.‐P. Raulin

“…To conduct our analysis, we employ the superposed epoch method, focusing on PGs collected between January 2010 and December 2019 at a specific station situated at a low latitude and high altitude: the Complejo Astronómico El Leoncito (CASLEO) in Argentina (31.78°S, 2,550 m above sea level). …”
Get full text

TIE‐GCM ROPE ‐ Dimensionality Reduction: Part I by Piyush M. Mehta, Richard J. Licata

“…This work focuses on the dimensionality reduction step of the ROPE development process and addresses three limitations of the proof‐of‐concept: (a) extending the altitude upper boundary from 450 km to nearly 1000 km, (b) employing deep learning for nonlinear dimensionality reduction over principal component analysis (PCA) for improved performance during storm periods, and (c) maintaining the spatial resolution of the physical TIE‐GCM model, without down‐sampling, to preserve the spatial scales and variations. …”
Get full text

Study of Uplink Interference in UMTS Network: ASIACELL Company, Iraq by Bakhtiar Ali Karim, Bzhar Rahaman Othman

“…This parameter is affected by many factors such as number of the users connected to the system, combining second generation (2G) and 3G frequencies within the same geographical area, geographical causes (difference of Altitude), and hardware impairment. In this paper we intensively study how these factors affect the uplink interference level (i.e. …”
Get full text

Plant community formation and species distribution pattern in relation to environmental variables in Endiras Natural Forest, northwest Ethiopia by Getinet Masresha, Worku Misganaw, Endale Adamu

“…Organic matter, pH, and altitude, highly correlated with CCA axis 1, largely shaped the community formation patterns. …”
Get full text

Landslide Susceptibility Assessment in Planned Areas Using Geographical Information Systems and AHP Method: The Case of Artvin by Halil Akıncı, Ayşe Yavuz Özalp, Sebahat Temuçin Kılıçer

“…Parameters including lithology, altitude, slope, aspect, and proximity to the stream were used in landslide susceptibility analysis. …”
Get full text

Ice cover loss and debris cover evolution in the Afghanistan Hindu Kush Himalaya between 2000 and 2020 by Jamal A. N. Shokory, Stuart N. Lane

“…Notably, 60 percent of ice cover loss (2000–2020) related to ice cover extents with a size ≤ 2.5 km2, comprising 60 percent of the total ice-covered area in 2000. Higher altitude accumulation zones also exhibited mass loss. …”
Get full text

Case studies of different types of precipitation at Ny-Ålesund, Arctic by Lekhraj Saini, Saurabh Das, Nuncio Murukesh

“…Warm and moist winds at $$\sim$$ 2-3 km altitude facilitated high temperature and moisture that helped snow to melt in liquid, resulted in rainfall over the location. …”
Get full text

Phylogeographic analyses reveal recent dispersal and multiple Wolbachia infections of the bright-eyed ringlet Erebia oeme within the European mountain systems by Valentine Mewis, Martin Wendt, Thomas Schmitt

“…The Bright-eyed ringlet Erebia oeme is widespread in high-altitude grasslands of the European high mountains, hence showing a disjunct distribution pattern. …”
Get full text

Ambient Ozone Exposure in Czech Forests: A GIS-Based Approach to Spatial Distribution Assessment by I. Hůnová, J. Horálek, M. Schreiberová, M. Zapletal

“…Our results indicate that the optimal interpolation approach is linear regression of O3 data and altitude with subsequent interpolation of its residuals by ordinary kriging. …”
Get full text

Brueckner Events Oscillations in Solar Transition Region by Sima Zeighami, Ehsan Tavabi

“…We obtained intensity profiles from spectrum perpendicular to the slit in three altitudes from the limb, and then by fitting Gaussian intensity profiles, the transverse fluctuations up to 3200 km altitude along the slit were computed. …”
Get full text

A New Era of Submillimeter GRB Afterglow Follow-Ups with the Greenland Telescope by Yuji Urata, Kuiyun Huang, Keiichi Asada, Hiroyuki Hirashita, Makoto Inoue, Paul T. P. Ho

“…The GLT is a 12-m submm telescope to be located at the top of the Greenland ice sheet, where the high altitude and dry weather porvide excellent conditions for observations at submm wavelengths. …”
Get full text