Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: water resources in Poland

Sortuj według:

Ogranicz wyniki do:

Water availability in reference to water needs in Poland

Orlińska-Woźniak P., Wilk P., Gębala J.

Meteorology Hydrology and Water Management. Research and Operational Applications

2013

Vol. 1, Iss. 1

45--50

On Earth water is an irreplaceable asset, and an estimate of its resource capacity is necessary. The improper selection of indicators of water resources can lead to the underestimation or overestimation of the actual resources present. Incorrect assessments of water resources contribute to the improper completion of necessary water management tasks, thereby failing to satisfy the needs of different water users such as industry, agriculture and forestry, inland water navigation, tourism and recreation and the general population for the purposes of municipal water use. This article discusses the advantages of utilizing Earth Observation technology for estimating water resources in Poland. Despite the large amount of water on Earth, decades of wrongly pursued water management have led to a critical point in maintaining this valuable resource. According to actual estimations, there are enough fresh water resources in the world; the problem is the uneven distribution and pollution of these resources, especially in the case of surface water. Currently, Poland, in comparison with other European countries, is classified as a country with very little water resources. It is important, however, that a thorough evaluation using the latest measurement technologies is conducted, particularly for groundwater resources in deep layers of the lithosphere. The proper assessment of water resources requires knowledge of the hydrogeological conditions within each of the catchments of the analyzed area. International data sets are mostly incomplete and heterogeneous, which makes the comparison of data of several years difficult and often leads to mistakes. While analyzing Polish water resources several factors should be taken into account, including: the amount of rainfall, the amount of water in rivers, lakes and groundwater, and the above-mentioned factors affecting the measurement of the amount of disposable water resources. This article is an introduction to the broader analysis of water resources in Poland and an exploration of the issue from a different perspective.

Użycie technik GIS do szacowania zasobów wód powierzchniowych w skali kraju

Barszczyńska M., Madej P., Kubacka D.

Roczniki Geomatyki

2010

T. 8, z. 5

23-30

Polska z zasobami odnawialnymi wód na poziomie ok. 1600 m3/mieszkańca/rok i wskaźnikiem wykorzystania zasobów wodnych bliskim 20% jest, na tle Europy, krajem stosunkowo ubogim w wodę (por. EEA, 2007). Dwudziestoprocentowy wskaźnik wykorzystania zasobów wodnych jest granicą od której kraj jest klasyfikowany jako zagrożony deficytem, a zatem zasoby wodne w Polsce powinny być traktowane jako zasób wrażliwy, zwłaszcza w perspektywie zmian klimatu mogących skutkować zmianami ilościowymi oraz zmianami rozkładu przestrzennego i czasowego zasobów wodnych. Stąd zrównoważone gospodarowanie zasobami wodnymi zostało włączone jako jeden z wątków do projektu .Wpływ zmian klimatu na środowisko, gospodarkę i społeczeństwo (zmiany, skutki i sposoby ich ograniczania, wnioski dla nauki, praktyki inżynierskiej i planowania gospodarczego)., projekt o akronimie KLIMAT, umowa nr POIG.01.03.01-14-011/08-00. W artykule przedstawiono wyniki prac w tym projekcie.

The article presents the experience in the assessment of Polish surface water resources. The described results are based on the project entitled .The influence of climate changes on environment, economy and society. with the acronym KLIMAT (Project No. POIG.01.03.01-14-011/08-00). The main problem considered in the paper is the preparation of spatial representation of surface water resources adequate for analysis allowing classification of the area of Poland according to water shortage hazards. Data about water resources should be easily transformable into different spatial representations. The calculation of Poland.s surface water resources is based on data on water flows at water gauges and it was chosen in this project to present them in the form of unit runoff coefficients. The paper describes the main problems related to the calculation of unit runoff coefficients, such as lack of measurements in some areas of Poland and lack of data about the water use affecting hydrological regime of rivers. An example of possible use of the unit runoff coefficient for the assessment of water resources in the selected area was also presented. Water resources were assessed separately as internal resources coming from precipitation in the selected area, and resources coming from the inflow from adjacent areas. Possibilities of the use of GIS supported by ESRI ArcGIS software 9.3 version are presented. The areas of GIS use concern mainly changes in spatial representation of the analysed phenomenon, including recalculation of water resources characteristics and the use of hydrological modeling procedures.