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Indicatory evaporation of summer half-year in various long-term periods

100%

Rojek M., Wiercioch T.

Zeszyty Problemowe Postępów Nauk Rolniczych

1994

tom 405

155-161

The paper contains the results of calculations of monthly and summer half-year (April-September) sums of indicatory evaporation (Eₒ) for 17 meteorological stations located in lowland Poland. The average values for different 20-year, 30-year, and the basic 40-year period (1951 - 1990) were compared. The extreme values (max and min) were found and standard deviations (σ) were calculated for the 1951 - 1990 period. The differences between 30-year and 40-year periods are insignificant, both in particular months and in the entire summer half-year. Thus, one can assume that for indicatory evaporation the 30-year observation period is sufficiently representative and reliable.

Time variability of climatic water balances in selected meteorological stations in Poland

75%

Rojek M.

Zeszyty Problemowe Postępów Nauk Rolniczych

1994

tom 405

147-153

The paper presents the results of calculations of monthly and summer half-year (April-September) sums of climatic water balances (P-Eₒ) for 21 meteorological stations located in lowland Poland. Average values for various periods of 20 - 30 year and the basic 40-year period were compared. For the 1951 - 1990 period extreme values (max and min) were found and standard deviations (σ) were calculated. It was shown that average values from 20 year periods could not be considered sufficiently representative (mainly because of high variations of precipitations in time). The values from the 1951 - 1980 period are approximate to the average values from the 40 year period (1951 – 1990).

Zmiany klimatu, ich przyczyny i zagrożenia

51%

Ostojski M., Bielec-Bakowska Z.

Ekonatura

2011

nr 05

Ograniczanie wyników

2 Zeszyty Problemowe Postępów Nauk Rolniczych

1 Ekonatura

2 Rojek M.

1 Bielec-Bakowska Z.

1 Ostojski M.

1 Wiercioch T.

1 2011

2 1994

Wyniki wyszukiwania

Indicatory evaporation of summer half-year in various long-term periods

Time variability of climatic water balances in selected meteorological stations in Poland

Zmiany klimatu, ich przyczyny i zagrożenia