scholarly journals Air temperature and precipitation data, Wolverine Glacier basin, Alaska, 1967-94

1995 ◽  
Author(s):  
B.W. Kennedy
Keyword(s):  
Air Temperature ◽  
Precipitation Data ◽  
Temperature And Precipitation

Climatic variation and runoff in mountain basins with differing proportions of glacier cover*

2006 ◽  
Vol 37 (4-5) ◽  
pp. 315-326 ◽  
Author(s):  
David N. Collins
Keyword(s):  
Air Temperature ◽  
Little Ice Age ◽  
Climatic Variation ◽  
Ice Age ◽  
Precipitation Data ◽  
Climatic Fluctuation ◽  
Temperature And Precipitation ◽  
Glacier Recession ◽  
Mountain Basins ◽  
High Elevations

Records of discharge from partially-glacierised basins in the upper Rhône catchment, Switzerland, were examined together with air temperature and precipitation data in order to assess impacts of climatic fluctuation and percentage glacierisation of basin on runoff, as glaciers declined from dimensions attained during the Little Ice Age. Above 60% glacierisation, year-to-year variations in runoff mimicked mean May–September air temperature, rising in the warm 1940s, declining in the cool 1970s, before increasing (by 50%) into the warm dry 1990s/2000s but not reaching 1940s maxima. In basins with between 35–60% glacierisation, flow also increased into the 1980s but waned through the 1990s. With less than 2% glacierisation, the pattern of runoff was broadly the inverse of that of temperature and followed precipitation, dipping in the 1940s, rising in the cool wet late 1960s, and declining into the 1990s/2000s, with glacier melt in warm years being insufficient to offset lack of precipitation. On mid-sized glaciers at relatively low elevations and with limited vertical extent, in warmer years, the transient snow line was above the highest point of the glacier. Only on large glaciers descending from high elevations can rising transient snowlines continue to expose more ice to melt. Runoff from such large glaciers was enhanced in warm summers but reduction of overall ice area through glacier recession led to runoff in the warmest summer (2003) being lower than the previous peak discharge recorded in the second warmest year (1947).

Air temperature and precipitation data, Gulkana Glacier, Alaska, 1968-96

1997 ◽  
Author(s):  
Ben W. Kennedy ◽  
Lawrence R. Mayo ◽  
Dennis C. Trabant ◽  
Rod S. March
Keyword(s):  
Air Temperature ◽  
Precipitation Data ◽  
Temperature And Precipitation

scholarly journals Wavelet-based analysis of global index effects in air temperature and precipitation data of the Black Sea coast

2018 ◽  
Vol 10 (2) ◽  
pp. 402-418
Author(s):  
Turgay Partal ◽  
Cenk Sezen
Keyword(s):  
Air Temperature ◽  
Temperature Data ◽  
The Black Sea ◽  
Precipitation Data ◽  
Short Term ◽  
Global Indices ◽  
The North ◽  
Temperature And Precipitation ◽  
Nao Index ◽  
Annual Total

Abstract This study has been carried out to analyse the precipitation and air temperature data in the Black Sea region of Turkey to aid the understanding of the effects of global indices. Connections between the temperature or precipitation data and global atmospheric indices such as the North Sea Caspian Pattern (NCP), the Southern Oscillation Index (SOI) or the North Atlantic Oscillation (NAO) were studied. Results of the cross-correlations between air temperature and the NCP/NAO showed a strong relationship, especially in the winter period. The seasonal and annual differences for the temperature and precipitation data during the negative and positive phases of the global indices were computed. According to this, the annual total precipitations are higher during the positive NCP index than the negative NCP index, while the annual total precipitations are higher during the negative NAO index than the positive NAO index. On the other hand, wavelet analysis showed that some short-term periodicities in precipitation and temperature data are connected with the NAO and the extreme phases of the SOI. The influence of the NCP should also be considered for the short-term periodicities of the temperatures.

scholarly journals Evaluation of Three Practical Methods for Estimating Daily Solar Radiation in Dry Climates

2008 ◽  
Vol 2 (1) ◽  
pp. 185-191 ◽  
Author(s):  
F. Castellví
Keyword(s):  
Solar Radiation ◽  
Air Temperature ◽  
Reference Evapotranspiration ◽  
Daily Maximum ◽  
Precipitation Data ◽  
Expert Consultation ◽  
Weather Variables ◽  
Second Order Statistics ◽  
Temperature And Precipitation ◽  
Dry Climates

Three practical methods for estimating daily solar radiation in dry climates with air temperature and precipitation data as input were evaluated. The three equations only partially explained second order statistics such as variance and different correlations, so the interdependence with primary weather variables such as the daily maximum and minimum temperatures was not fully captured. The equations, however, may be useful for calculations that require solar radiation as input, such as the daily reference evapotranspiration according to Priestley-Taylor equation using the FAO guidelines expert consultation.

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