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Tytuł:
Acute mountain sickness, two cases and their treatment in the field
Autorzy:
Karinen, Heikki M.
Tikkanen, Heikki O.
Powiązania:
https://bibliotekanauki.pl/articles/2180093.pdf
Data publikacji:
2012-06-01
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
high altitude
acute mountain sickness
altitude illness
Opis:
Objective: The number of lowland dwellers traveling at high altitudes has greatly increased in recent decades. Business travelers flying to La Paz or Lhasa are at risk of altitude illnesses, similarly to miners and soldiers transported to high altitudes. Traveling to high altitude requires adaptation and if this process fails due to too rapid an ascent rate or susceptibility of the climber, acute mountain sickness (AMS) may result. Doctors and nurses in travel clinics, health centers and occupational health care clinics may face patients asking advice on how to plan their trips or manage AMS, or the health care personnel may take part in a travel to high altitude environment. Methods: Two patients, aged 29 and 47 years, who fulfilled the criteria for AMS were studied. The clinical findings and treatment in the field are described including the review of the current recommendations for prevention and treatment of AMS. Results: Both patients developed a severe AMS due to too rapid ascent and their denial of the symptoms. Conclusions: Prevention is the safest and the most efficient method in the care concerning AMS. Realizing the risk of mountain sickness, active inquiry about the symptoms and correctly timed reaction to them, in other words interrupting the ascent or descending, help to reduce and even to prevent the development of serious problems.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2012, 25, 3; 304-309
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An analysis of commercially recommended profiles for normobaric preacclimatization
Autorzy:
Tannheimer, Markus
Lechner, Raimund
Powiązania:
https://bibliotekanauki.pl/articles/2098231.pdf
Data publikacji:
2021-03-02
Wydawca:
Państwowa Wyższa Szkoła Zawodowa w Tarnowie
Tematy:
acute mountain sickness (AMS)
high attitude
acclimatization
normobaric hypoxia
trekking
expedition mountaineering
Opis:
Introduction: Normobaric hypoxic training (NHT) for preacclimatization at home has found its way into commercial expedition mountaineering. Portable NH-generators produce a normobaric hypoxic gas mixture that can be inhaled using breathing masks at rest or during exercise or it can be pumped into lightweight tents for sleeping. These devices can be rented from commercial companies.Materials and methods: Prior to an expedition to Manaslu (8163 m) NHT was used for preacclimatization over a period of 10 days. Our regimen involved a greater increase in sleeping altitude (10 nights to reach 5400 m) than recommended by the rental company (30 nights to reach 3900 m). Results: No incidents occurred during NHT. Our regimen induced sufficient acclimatization to Manaslu Base Camp (4900 m), as evidenced by the fact that none of the expedition members suffered from AMS although they reached base camp within 2 days from Kathmandu – by helicopter flight to 3500 m and a one day walk the next day. Eight days after leaving Kathmandu, camp III was reached at 6850 m.Conclusions: At natural altitudes above 2500 m an increase of sleeping altitude should not exceed 300-500 m per day. Below 2500 m, there are no restrictions. It is therefore unclear why the company recommends such a slow increase in sleeping altitude. In our opinion, it is not necessary for healthy persons to start with a sleeping altitude below 2500 m. In contrast to natural altitudes, NH exposure can be instantly stopped if symptoms occur. Therefore, it seems safe to expose healthy persons to more liberal normobarichypoxic conditions.
Źródło:
Health Promotion & Physical Activity; 2021, 14, 1; 25-29
2544-9117
Pojawia się w:
Health Promotion & Physical Activity
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concept of landscape horizontal belts in the Polish Tatra Mountains
Autorzy:
Niedźwiecki, J.
Powiązania:
https://bibliotekanauki.pl/articles/294603.pdf
Data publikacji:
2009
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
Tatra Mts.
landscape belts
high mountains
mountain landscap
slope system
Opis:
The history of changes of geoecological belts in the mountains exerts influence on the structure and functioning of the landscape. In many mountain regions, a convergence of two basic altitudinal lines occurs: the contemporary upper timberline and the cold Pleistocene snow line. The Tatra Mts. are an example of such a situation. These lines constitute the border between the high-mountain landscape and the landscape of mid- and low mountains (according to the Polish classification). However, this convergence also marks out the horizontal border across the profile of the valley, which separates the part with completely established high mountain landform complex (with postglacial cirques)from the remaining part of the valley. The montane belt can be also divided into two parts characterized by different landscape structure, due to existence of the influence of catenal processes from the subsystem of high-mountain belt. On these bases, the author introduces the concept of landscape horizontal belts in the mountain landscape of the Polish Tatra Mts., dividing the latter into three functional belts: the typical high-mountain landscape, the transitional landscape, and the typical landscape of mid- and low mountains.
Źródło:
Landform Analysis; 2009, 10; 102-107
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Developing Criteria for Assessing The Stability of Water Supply Models in High Mountains and Water-Scare Areas
Autorzy:
Nguyen, Manh Truong
Dinh, Anh Tuan
Nguyen, Tiep Tan
Vu, Thi Hong Nghia
Do, Van Binh
Powiązania:
https://bibliotekanauki.pl/articles/27323245.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Przeróbki Kopalin
Tematy:
criteria
water supply
high mountain
Vietnam
kryteria
Wietnam
woda
Opis:
The article presents the scientific basis for assessing the stability of water supply models and develops a suitable set of criteria to assess the stability of water supply works, which includes the water supply part for water supply works and systems (including headworks and water distribution systems) in high mountains and water-scarce areas in Vietnam. Research results indicate that in order to improve the stability and availability of water of the models that have been, are and will be built, it is necessary to have a common method of evaluating effectiveness for scientific models of domestic water supply. Accordingly, it is necessary to build obtain a suitable set of criteria to assess the stability of the water supply model (source + water supply works) in the high mountains, water-scarce areas in Vietnam.
Źródło:
Inżynieria Mineralna; 2023, 2; 179--186
1640-4920
Pojawia się w:
Inżynieria Mineralna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geomorphological mapping in high mountain watersheds: the contribution of geomorphology to the evaluation of sediment transfer processes
Autorzy:
Theler, D.
Reynard, E.
Powiązania:
https://bibliotekanauki.pl/articles/294324.pdf
Data publikacji:
2007
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
geomorphological mapping
high mountain watersheds
sediment transfer processes
Źródło:
Landform Analysis; 2007, 5; 85-86
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gleby siedlisk leśnych Żywiecczyzny Cz. II. Siedliska wysokich położeń regla dolnego i regla górnego
Solis of forest site types in Żywiec region Part II. Forest sites at high elevations of the lower montane zone
Autorzy:
Lasota, J.
Powiązania:
https://bibliotekanauki.pl/articles/1023762.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
siedliska lesne
Beskid Slaski
gleby lesne
Beskid Maly
Beskid Zywiecki
regiel gorny
lesnictwo
wysoki regiel dolny
forest site type
mountain forest site
high elevations of lower montane zone
west beskidy
forest soil
fertility
Opis:
The studies on soil properties affecting forest sites at high elevations of the lower (900−1100 m a.s.l.) and upper montane zones were carried out in the Żywiec region. The paper describes the relationships between forest site types and underlying parental rock, soil type and subtype, as well as basic physical and chemical properties of soils used in the assessment of their natural fertility and productivity.
Źródło:
Sylwan; 2004, 148, 03; 14-20
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hiperspektralna metoda badania i kartowania roślinności wysokogórskiej
Hyperspectral methods for high mountain vegetation analysis and mapping
Autorzy:
Sobczak, M.
Powiązania:
https://bibliotekanauki.pl/articles/132293.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Geograficzne
Tematy:
metody hiperspektralne
roślinność wysokogórska
kartowanie
hyperspectral methods
high mountain vegetation
mapping
Opis:
Basing on recent studies with the use of hyperspectral data and on the results of vegetation characteristics comparison, it was assumed, that hyperspectral airborne images allow for identification and monitoring of chosen plant species in high mountain environment. Algorithms based on spectral mixture models give the possibility of describing pixel value as an aggregation of individual spectral responses. This helps in assessing percentage of each species cover in the plant community. Main aim of this study was the continuation of previous studies on identification of spectral characteristics of high mountain plant species, with the view of creating local spectral library of those species. Furthermore, a method of automatic identification and mapping of high mountain vegetation should be developed. The study involved analysis of 5 species: Luzula spadicea, Juncus trifidus, Calamagrostis villiosa, Deschampsia fl exuosa and Nardus stricta, and was conducted in Gąsienicowa Valley in Tatra National Park in Poland. For the assessment of possibilities of high mountain plant species identification and mapping, airborne hyperspectral images from DAIS 7915 scanner were used. Field measurements, used as a reference for airborne data, were taken with the use of GER 3700 and ASD FieldSpec spectrometers in 13 measurement locations. They were also used for analysis of spectral reflectance differences between the species. Identification and mapping of plant species were realized using 4 different classification methods, of which Spectral Angle Mapper (SAM) method gave the best results. The results were compared to test data for accuracy assessment.
Źródło:
Teledetekcja Środowiska; 2009, 41; 79-103
1644-6380
Pojawia się w:
Teledetekcja Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance requirements and simulation of rotor operation for high-mountain rescue helicopter
Autorzy:
Stanisławski, J.
Powiązania:
https://bibliotekanauki.pl/articles/243448.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
rescue helicopter
high-mountain operations
rotor blade deformation
Opis:
Simulation results concerning performance of helicopter suitable for high-mountain rescue operations are presented. Including operations in regions of the highest Himalaya Mountains, the possibility of hover ceiling out of ground effect (OGE) at 10,000 m above sea level is assumed. Demand of high ratio of developed lift to power required for hover leads to choice the coaxial rotor configuration as the best for rescue helicopter, which can operate in extremely high mountain environment, and gives good stability features in wind gust conditions in comparison with single main rotor helicopter. For performance calculations the simple model of helicopter is applied, which consists of fuselage point mass and rotor disk. The cases of partial and total power loss are considered to define range of H-V zones and possibilities of flight continuation due to height of landing surface over level of sea. The rotor blades and rotor loads are calculated applying detail model of elastic blade, which includes effects of its deflections due to out-of-plane bending, in plane bending, and torsion. The Runge-Kutta method is applied to solve equations of motion of rotor blades with taken into account effects of blade pitch control and variable deflections of blades. According to Galerkin method, the blade parameters of motion are treated as a combination of torsion and bending eigen modes of the rotor blades. Elastic blade model allows defining behaviour rotor blades in selected states of flight: hover, level flight, wind gust conditions, and pull-up manoeuvre. The results of simulation for upper and lower rotor for blade deflections and loads are shown in form of time-run plots and rotor disk distributions. The simulation investigation may be applied to define features of helicopter configuration suitable for operation in extremely high mountain conditions..
Źródło:
Journal of KONES; 2018, 25, 2; 341-348
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Portable hyperbaric chambers for the treatment of altitude disease
Przenośne komory hiperbaryczne w leczeniu chorób wysokościowych
Autorzy:
Küpper, Thomas
Gieseler, Ulf
Milledge, Jim
Morrison, Audry
Schöffl, Volker
Powiązania:
https://bibliotekanauki.pl/articles/12721265.pdf
Data publikacji:
2022
Wydawca:
Akademia Tarnowska
Tematy:
choroba wysokościowa
AMS
HAPE
HACE
obrzęk płuc
obrzęk mózgu
altitude disease
acute mountain sickness
high altitude pulmonary edema
high altitude cerebral edema
Opis:
Portable hyperbaric chambers are a therapeutic option for altitude disease in the mountains. By an increase of the oxygen partial pressure the patient’s symptoms ameliorate significantly. Portable hyperbaric chambers may be used as ‘stand alone therapy’ as well as in combination with other therapeutic options. Here we present the recommendation how to use the device and how to avoid problems. The recommendation has been agreed by all members of the medical commission of the world umbrella organization Union Internationale des Associations d’Alpinisme (UIAA MedCom).
Źródło:
Health Promotion & Physical Activity; 2022, 20, 3; 36-40
2544-9117
Pojawia się w:
Health Promotion & Physical Activity
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pragmatyczne spojrzenie na Strzechę Akademicką jako archetypowe karkonoskie schronisko wysokogórskie
A pragmatic look at Strzecha Akademicka as an archetypal high mountain shelter in the Giant Mountains
Autorzy:
Simiczyjew, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/294220.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
Strzecha Akademicka
schronisko wysokogórskie
Karkonosze
high mountain shelter
Giant Mountains
Opis:
Strzecha Akademicka jest jednym z najstarszych i najbardziej znanych schronisk Karkonoszy. Autor artykułu stara się odpowiedzieć na pytanie o to, czy w dobie wypoczynku opartego na maksymalizacji doświadczeń i bodźców jest ona, wraz z pozostałymi schroniskami, w stanie przyciągnąć nowych turystów. Szukając odpowiedzi, przedstawił historię schroniska, jego przebudowy, poruszył problemy prawne i związane ze statusem obiektu, a także oczekiwania turystów. Po takiej analizie pokusił się o wniosek, że przy optymalnej współpracy organów administracyjnych można dostosować obiekt do ergonomicznego pełnienia aktualnej i nowych funkcji.
Strzecha Akademicka is one of the oldest and best known shelters in the Giant Mountains. The author of the article tries to answer the question of whether in the era of relaxation, based on the maximization of experiences and stimuli, Strzecha Akademicka together with other shelters are able to attract new tourists. Searching for the answer, he presented the history of building, its reconstructions, raised legal problems and related to the status of the facility, as well as the expectations of modern tourists. After such an analysis, he attempted to conclude that, with optimal cooperation of administrative offices, the facility could be adapted to the ergonomic fulfillment of current and new functions.
Źródło:
Architectus; 2018, 1 (53); 99-110
1429-7507
2084-5227
Pojawia się w:
Architectus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problems in geoecological approach to high-mountain environment (based on studies of relief : vegetation relationships)
Autorzy:
Kozłowska, A.
Rączkowska, Z.
Powiązania:
https://bibliotekanauki.pl/articles/294595.pdf
Data publikacji:
2009
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
high-mountain landscape
relief
vegetation
geoecological aproach
Tatra Mts.
Opis:
The paper discusses the issues associated with the geoecological rendition of high mountains, taking as a basis the authors’ studies of interrelations between relief and vegetation. The fundamental prerequisites for these studies are presented, with emphasis on the fact that the relation between the two elements is indirect and takes place via the intermediary of the habitat. With respect to the scales, both spatial and temporal, applied in the study of landscape, it is established that the majority of relations between vegetation and relief is analysed on the micro-scale, and much less frequently on the meso-scale. Application of areal methods in respective studies provides the possibility of determining the measure of relation between the elements considered. The linear methods (like, e.g., the catena method) allow for grasping the gradient differentiation of the spatial patterns on high mountain slopes. It was established that the main source of problems with landscape representation of high mountains is the mosaic character of the landscape structure. Due to this, even though the interrelations between the elements of the environment – including relief and vegetation – are distinctly visible, they have not been made precise enough with the mathematically defined dependencies, which make development of models of structure and functioning of high mountain slopes more difficult.
Źródło:
Landform Analysis; 2009, 10; 70-76
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Respiratory parameters at varied altitudes in intermittent mining work
Autorzy:
Bacaloni, Alessandro
Zamora Saà, Margarita Cecilia
Sinibaldi, Federica
Steffanina, Alessia
Insogna, Susanna
Powiązania:
https://bibliotekanauki.pl/articles/2161650.pdf
Data publikacji:
2017-11-03
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
shift work
high altitude
silica
risk assessment
mining
mountain-top mining
Opis:
Objectives: Workers in the mining industry in altitude are subjected to several risk factors, e.g., airborne silica and low barometric pressure. The aim of this study has been to assess the risks for this work category, evaluating single risk factors as airborne silica, altitude and work shift, and relating them with cardiovascular and ventilatory parameters. Material and Methods: Healthy miners employed in a mining company, Chile, working at varied altitudes, and subjected to unusual work shifts, were evaluated. Cardiovascular and respiratory parameters were investigated. Exposure to airborne silica was evaluated and compared to currently binding exposure limits. Results: At varied altitudes and work shifts, alterations emerged in haemoglobin, ventilation and respiratory parameters, related to employment duration, due to compensatory mechanisms for hypoxia. Haemoglobin increased with altitude, saturation fell down under 90% in the highest mines. The multiple linear regression analysis showed a direct relationship, in the higher mine, between years of exposure to altitude and increased forced vital capacity percent (FVC%), and forced expiratory volume in 1 s (FEV1). An inverse relationship emerged between forced vital capacity (FVC) and years of exposure to airborne silica. In the workplace Mina Subterrànea (MT-3600), statistically significant inverse relationship emerged between the Tiffeneau index and body weight. Conclusions: The working conditions in the mining industry in altitude appeared to be potentially pathogenic; further investigations should be realized integrating risk assessment protocols even in consideration of their undeniable unconventionality. Int J Occup Med Environ Health 2018;31(2):129–138
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2018, 31, 2; 129-138
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temperature and humidity monitoring to identify ideal periods for liquefaction on Earth and Mars : data from the High Andes
Autorzy:
Kereszturi, Akos
Pal, Bernardett
Gyenis, Akos
Powiązania:
https://bibliotekanauki.pl/articles/2060125.pdf
Data publikacji:
2020
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
deliquescence
humidity
high mountain
Mars
Mars anaiogue
Opis:
During an almost two week-long field campaign in the Atacama Desert high altitude region of Ojos del Salado volcano, tem-perature (T) and relative humidity (RH) values were monitored on the surface and <1-5 cm sized rocks, focusing on the night-time values. The aim was to identify and evaluate potential temporal characteristics of daily T and RH changes, search¬ing for ideal periods for del i quescence that has recently been proposed for Mars. Although the atmospheric pressure on Mars is much lower than on Earth, and the atmosphere is drier in general, the huge daily temperature fluctuation there could produce elevated humidity values at night-time; this aspect has thus been analysed on Earth at a desert location, where be¬cause of the high elevation night-time cooling is very strong, just like on Mars. Different nearby surface locations showed the same temporal T/RH characteristics, but evident variations were observed between different days. Strong fluctuations could be observed on 10-20 minute long temporal scales, that might influence the deli quescence process, and should be ac-counted for in future missions aiming to analyse this process on Mars. Night-time periods were favourable for deliquescence. Among the modelled Mars-relevant salts [CaCl2, Ca(ClO4)2, Mg(ClO4)2, NaCl] the longest durations of possible deliques¬cence were for CaCl2, Ca(ClO4)2 and Mg(ClO4)2, ~7-12 hours for one day. The duration for deliquescence showed some in¬crease along with the rising elevation, due to the decreasing night-time temperature. Thus despite the low humidity on Mars, the cold nights may cause elevated RH towards del i quescence. The Atacama Desert locations analysed are a useful ana¬logue of the deliquescence process on Mars. Fluctuation in RH was observed in night-time, suggesting that similar variability might be present on Mars, and that should be considered in the future, including in evaluating how fast the microscopic liquid formation progresses. Night-time slope winds expected on Mars might have a strong impact on the local T/RH conditions. A more detailed analysis in the future should focus on identifying and separating regions with and without much of the expected night-time fluctuation.
Źródło:
Geological Quarterly; 2020, 64, 4; 898--914
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The spatial patterns of the Tatra high - mountain landscape structure
Autorzy:
Boltižiar, M.
Powiązania:
https://bibliotekanauki.pl/articles/294897.pdf
Data publikacji:
2009
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
high-mountain landscape structure
geomorphic forms and processes
spatial patterns
Tatra Mts.
Opis:
The paper focuses on the identification and classification of spatial patterns in the relation to landforms and geomorphic processes considering the middle-scale and micro-scale of the high-mountain landscape. These determine not only the shape of patches or the character of boundaries, but also the character of fragmentation, the heterogeneity of patches, the gradient and the tendency of patches development. Georelief, especially its spatial morphodynamic attributes, represents relevant phenomena of the landscape which facilitate to understand the scale and hierarchy of the landscape structure. The algorithm of this study is based on the spatial identification of landforms, processes and patterns considering large-scale aerial photographs, a field reconnaissance and the partial classification. The main aim of this paper is to create the classification system of spatial patterns as the physiognomic spatial attributes of the landscape structure mosaic in the high-mountain areas. The genesis of spatial structure patterns and their formation enables us to understand better the origin of the high-mountain landscape structure, its function and contents in this environment. Such a classification can be regarded as a basis for the quantitative statistic analyses of the landscape structure and for the detailed research of spatial patterns.
Źródło:
Landform Analysis; 2009, 10; 11-17
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ukształtowanie powierzchni terenu a wartości metryk krajobrazowych w górach wysokich na przykładzie Tatr
Autorzy:
Niedźwiecki, Jan
Kolecka, Natalia
Powiązania:
https://bibliotekanauki.pl/articles/634045.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
landscape metrics
high mountain landscape
Tatra Mountains
3D approach
metryki krajobrazowe
krajobraz wysokogórski
Tatry
podejście 3D
Opis:
W niniejszej pracy zaprezentowano wyniki porównania wartości wybranych metryk krajobrazowych otrzymanych na podstawie obliczeń wykonanych dwiema metodami: metodą tradycyjną, w której pomiarów dokonuje się po zrzutowaniu mozaiki jednostek przestrzennych na powierzchnię planimetryczną, oraz metodą uwzględniającą trzeci wymiar krajobrazu – opartą na analizie numerycznego modelu terenu. Badania wykazały, że zastosowane metody mogą mieć wpływ na uzyskany obraz struktury krajobrazu wysokogórskiego. Ponadto w pracy zawarto uwagi dotyczące obliczania średniej szorstkości powierzchni oraz analiz wykonywanych przy wykorzystaniu pól geometrycznych w danym typie krajobrazu.
The aim of the authors was to compare values of 2D and 3D landscape metrics in high mountains. The first part of the work takes into consideration the spatial structure of vegetation (the rank of landscape facias/ecotopes) of Kocioł Goryczkowy Świński, which was investigated in 1999 by Anna Kozłowska and Anna Jakomulska. The calculation of landscape metrics is resumed using the true surface geometries and compared with the result of traditional measurements on a reference plane. In the second part of the paper, a set of commonly used landscape metrics is calculated for the geocomplexes (rank of uroczysko unit) in the Morskie Oko catchment using both true surface and plain geometries. Finally average surface roughness is computed for the both study areas and some remarks for landscape metrics computed for geometric fields are given. The comparison shows that appropriate 2D and 3D metrics may differ significantly. Moreover, there is a strong correlation between the size of the discrepancy and the surface slope. For that reason, it is very important to distinguish between 2D and 3D metrics and to use them consciously, according to the particular problem.
Źródło:
Prace Geograficzne; 2012, 128; 81-98
1644-3586
Pojawia się w:
Prace Geograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
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