Details

Title

Air temperature variability in the vertical profile over the coastal area of Petuniabukta, central Spitsbergen

Journal title

Polish Polar Research

Yearbook

2017

Volume

vol. 38

Numer

No 1

Publication authors

Keywords

air temperature inversion ; Arctic ; near-surface lapse rate ; Svalbard

Divisions of PAS

Nauki o Ziemi

Coverage

41-60

Abstract

A two-year-long data set of air temperature from four different altitudes above Petuniabukta, central Spitsbergen, was analysed in order to assess the near-surface temperature lapse rates and the relative frequency of air temperature inversion occurrence. From August 2013 to July 2015, air temperatures at adjacent altitudes in Petuniabukta were strongly correlated. The near-surface lapse rates in all three layers differed significantly both from the average lapse rate in the international standard atmosphere (0.65°C 100 m-1) and the lapse rate calculated by linear regression. A pronounced annual cycle was detected in the lowermost air layer (from 23 to 136 m a.s.l.) with a variable near-surface lapse rate in the winter months, while an annual cycle was not apparent in the air layers above 136 m a.s.l. The lowermost layer was also characterized by a notable daily cycle in near-surface lapse rate in spring and autumn. Air temperature inversions occurred in up to 80% of the study period in the air layer below 136 m a.s.l., with the relative frequency being much lower in the other two air layers. The air temperature inversions lasted as long as 139 hours. A case study revealed that one of the strongest air temperature inversions was connected to an area of lower pressure gradients at the 850-hPa pressure level.

Publisher

Polish Academy of Sciences ; Committee on Polar Research

Date

2017.03.01

Type

Artykuły / Articles

Identifier

ISSN 0138-0338 ; eISSN 2081-8262

References

SerrezeM (1992), Low - Level Temperature Inversions of the Eurasian Arctic and Comparisons with Soviet Drifting Station Data, Journal of Climate, 5, 615, doi.org/10.1175/1520-0442(1992)005<0615:LLTIOT>2.0.CO;2 ; PrzybylakR (2014), Spatial distribution of air temperature on Svalbard during year with campaign measurements, International Journal of Climatology, 34, 1. ; GjeltenH (2016), Air temperature variations and gradients along the coast and fjords of western Spitsbergen, Polar Research, 35, 29878, doi.org/10.3402/polar.v35.29878 ; PrachK (2012), Variability of contemporary vegetation around Petuniabukta central Spitsbergen, Polish Polar Research, 33, 383. ; ArgentiniS (2003), Characteristics of the boundary layer at Ny - Ålesund in the Arctic during the ARTIST field experiment, Annals of Geophysics, 46, 185. ; LáskaK (2012), Weather patterns of the coastal zone of Petuniabukta ( Central Spitsbergen ) in the period, Polish Polar Research, 33, 297. ; NilsenF (2008), Fjord shelf exchanges controlled by ice and brine production : The interannual variation of Atlantic Water in Isfjorden, Continental Shelf Research, 28, 1838, doi.org/10.1016/j.csr.2008.04.015 ; MigałaK (2008), Topoclimatic conditions in the Hornsund area during the ablation season, Polish Polar Research, 29, 73. ; MałeckiJ (2013), Elevation and volume changes of seven Dickson Land glaciers, Polar Research, 32, 1960. ; VihmaT (2014), Advances in understanding and parameterization of small - scale physical processes in the marine Arctic climate system : a review, Atmospheric Chemistry and Physics, 14, 9403, doi.org/10.5194/acp-14-9403-2014 ; BednorzE (2010), thermal and bioclimatic conditions in Ebba Valley central Spitsbergen, Polish Polar Research, 31, 327. ; NordliØ (2014), Long - term temperature trends and variability on Spitsbergen : the extended Svalbard Airport temperature series, Polar Research, 33, 21349, doi.org/10.3402/polar.v33.21349 ; KalnayE (1996), The NMC NCAR - Year Reanalysis Project Bulletin of American Meteorological, Society, 77, 40. ; MarshallS (2007), Near - surface - temperature lapse rates on the Prince of Wales Icefield Ellesmere Island implications for regional downscaling of temperature, International Journal of Climatology, 27, 385, doi.org/10.1002/joc.1396 ; AraźnyA (2010), andBudzikT Meteorological and biometeorological conditions in the Hornsund area Spitsbergen during the warm season, Polish Polar Research, 31, 217. ; SzpikowskiJ (2014), Character and rate of denudation in a High Arctic glacierized catchment Ebbaelva Central Spitsbergen ), Geomorphology, 218, 52, doi.org/10.1016/j.geomorph.2014.01.012

DOI

10.1515/popore-2017-0004

×