The Antarctic Peninsula belongs to the regions of Earth that have seen highest increase in air temperature past few decades. warming is reflected degradation cryospheric system. impact climate variability and interactions between atmosphere cryosphere can be studied using numerical atmospheric models. In this study, standard version Weather Research Forecasting (WRF) model was validated on James Ross Island northern part Peninsula. aim study verify WRF output at 700 m horizontal resolution...

The output of the various Weather Research and Forecasting (WRF) model configurations was compared with ground-based observations in northern part James Ross Island, Antarctic Peninsula. In this region, a network automatic weather stations deployed at ice-free sites (as well as small glaciers) is operated by Czech Programme. Data from these provide unique opportunity to evaluate WRF complex terrain Island. forced ERA5 reanalysis data University Bremen sea ice data. include novel...

Abstract Air temperature inversions are common features in Antarctica, especially the interior where they observed nearly year-round. Large temporal variability of air inversion incidence is typical for coastal areas and little known about its occurrence Antarctic deglaciated areas. Here we present a 12-year-long time series near-surface derived from two automatic weather stations situated at different altitudes (10 375 m a.s.l.) ice-free part northern James Ross Island (Antarctic...

<p>Summer precipitation in the polar regions is important for many aspects of local environment. Examples include moss and lichens growth, snow-melt runoff, or snow accumulation on glaciers. However, observations, especially Antarctica, are very limited due to complicated logistics  frequent blowing-snow transport sublimation processes. One novel methods how improve in-situ estimates an application a very‑high‑resolution numerical...

A prominent increase in air temperature during the last decade has prompted summer melting and surface lowering of glaciers Antarctic Peninsula region. Accelerated mass loss from small land-terminating on James Ross Island attracted research attention to local conditions snow ice melt that remain poorly known. This study focuses potential effects non-woven geotextile Triangular Glacier. The measurements elevation changes reveal a total melt-season ablation 1.3 1.6 m 2021/22. Over half season...

Abstract. The Antarctic Peninsula is experiencing a rapid increase in air temperature, which has major impact on the entire ecosystem, including runoff process. Although water availability plays an important role polar ecosystems, generation region still poorly understood. We analysed variability rain, snow and glacier contributions to relation climate small, partly glaciated catchment James Ross Island north-eastern Peninsula. used hydrological model HBV simulate process for period...

The coastal regions of Antarctica are subject to frequent passages low-pressure systems and transient pressure ridges. This synoptic-scale setup favors abrupt weather changes occurrence dangerous outdoor conditions such as snowstorms, extremely low wind-chill values due air temperature strong winds, or intense solar radiation potentially leading snow blindness. In this zone most Antarctic research stations located, numerous scientific logistical field activities conducted. Under these...

This study evaluates the accuracy of ERA5-Land reanalysis products by comparing them with continuous data from James Ross Island, Antarctic Peninsula. shows lower variability in air and ground temperatures than measurements three automatic weather stations (AWSs) on Island: Johann Gregor Mendel (AWS-JGM), Abernethy Flats (AWS-AF), Johnson Mesa (AWS-JM). Differences mean annual temperature (MAAT) at 5 cm depth (MAGT5) are noted between AWSs for periods 2007/08-2020/21 2011/12-2020/21. Strong...

Antarctic Peninsula region experienced a rapid increase in air temperature during the second half of 20th century. Although warming was interrupted first decades 21st century, future climate projections predict that will significantly until end century this area. Changes have large impact on runoff process, especially proglacial environment. Even though these changes affects both terrestrial and marine ecosystems, generation is still poorly understood. Therefore, we analysed process small,...

Antarctic Peninsula (AP) glaciers experiencing mean summer air temperature near the melting point are highly sensitive to both long‑term climate variability and short-term but intense warm advection events. Large scale flow during these events could be further modified by interaction with topography, e.g., foehn development at eastern coast of 1000 – 2000 m high AP mountain range. Foehn effect on glacier melt was extensively studied Larsen C Ice Shelf region. However,...

<p>Aeolian dune field pattern could provide a very detailed image of the influence environmental controlling factors (wind regime, topography, sediment supply and others) to its development. Moravian Sahara located in Southern Moravia, Czechia, thus far away from European Sand Belt (i.e. area major aeolian accumulations Europe), represent unique archive reflecting effects these variables. Even despite remoteness Fennoscandian Ice Sheet during Last Glacial Maximum, permafrost...

<p>The Antarctic Peninsula experiences a strong climate variability which is well reflected in glacier mass balance and state of the other cryospheric components. A better insight into interactions atmosphere cryosphere can be obtained using numerical atmospheric models. In presented work, Weather Research Forecasting (WRF) model at 700 m horizontal resolution was validated northern part James Ross Island, Peninsula. The topography based on Reference Elevation Model Antarctica....