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advection; air; air temperature; climatology; cluster analysis; cold; cooling; databases; factor analysis; heat; summer; surface temperature; Europe; Northern Africa
Abstract:
... The air temperature extremes in the southern Balkans and the synoptic conditions that favor their occurrence are examined for the 40-year period 1979–2018, with the use of the ERA5 database. The 12UTC and 06UTC daily 0.25°×0.25° surface temperature values are used for the identification of the extreme high and extreme low temperature days, respectively. These days are defined based on the temperat ...
... A fully-coupled atmospheric-ocean model was developed by coupling WRF (Weather Research and Forecasting Model) with FVCOM (the unstructured-grid, Finite-Volume Community Ocean Model) through the Earth System Model Framework (ESMF). The coupled WRF-FVCOM is configured with either hydrostatic or non-hydrostatic oceanic dynamics and can run with wave-current interactions. We applied this model to sim ...
air temperature; cold; lakes; model validation; models; surface temperature; time series analysis; water temperature; Irish Republic; Poland
Abstract:
... The air2water model is a physically-based model in which major physical processes are parameterized. It allows to predict the surface lake temperature based solely on the time series of the air temperature. Due to its simplicity and very limited data requirements, it has found numerous applications around the globe. The air2water model defines the normalized depth of the well-mixed surface layer u ...
air temperature; bioclimatology; cold; cooling; databases; forests; heat; heat island; Serbia
Abstract:
... A comprehensive analysis of air temperature (Tₐ) dynamics in “local climate zones” (LCZs) of Novi Sad (Serbia) was based on measurements from 17 stations during 3 years. Hourly changes of Tₐ, cooling rates (CR), heating rates (HR), and urban heat island (UHI) intensity were assessed on seasonal and annual level and during heat wave (HW) and cold wave (CW) periods. Substantial differences are obser ...
air temperature; cold; land; landscapes; mental health; microclimate; people; relative humidity; trees; vegetation; wind speed; winter; China
Abstract:
... A comfortable thermal environment in outdoor spaces is beneficial to people’s physical and mental health in cold conditions during winter. Greenery can improve outdoor thermal comfort (OTC) via microclimates in winter. Multiple methods have been employed to investigate how greenery influences OTC and microclimate. However, the underlying mechanism of how microclimate participates in the regulation ...
air temperature; altitude; climatology; cold; shrinkage; snow; winter; China
Abstract:
... This study documents Coupled Model Intercomparison Project Phase 6 (CMIP6) evaluations and predictions of the dependence on elevation of surface air temperature trends over the Tibetan Plateau. Observations of the surface air temperature trends over the Tibetan Plateau in the boreal winter half year show an elevation-dependent warming, particularly from OND (October-November-December) to JFM (Janu ...
... Montane cloud forests (MCFs) are frequently immersed in low-altitude clouds or fog. The diurnal (defined as 07:00–16:50 local time) cycle of fog is particularly important for regulating the carbon, water and energy cycles of these ecosystems. Elevated temperatures may alter the spatiotemporal dynamics of fog and have cascading impacts on MCFs. Therefore, systematic monitoring of fog occurrence is ...
air temperature; ambient temperature; asthma; cold; death; monitoring; mortality; public health; regression analysis; research; risk; China
Abstract:
... Whether ambient temperature exposure contributes to death from asthma remains unknown to date. We therefore conducted a case-crossover study in China to quantitatively evaluate the association and burden of ambient temperature exposure on asthma mortality. Using data from the National Mortality Surveillance System in China, we conducted a time-stratified case-crossover study of 15 888 individuals ...
Hymenaea courbaril; Schistocerca gregaria; air; air temperature; body temperature; cold; digestive system; insect physiology; juveniles; thermoregulation; vegetation; Africa; Argentina
Abstract:
... At high density, juvenile locusts create marching hopper bands. Understanding the roles of temperature and vegetation on the movement of these bands shall allow to better forecast and control them. Following a hopper band in North Argentina in November 2019, we explored the thermoregulation behaviours of the South American locust, Schistocerca cancellata. Gut-content samples informed about the fee ...
Iuliana Vasiliev; Marcel T.J. van der Meer; Marius Stoica; Wout Krijgsman; Gert-Jan Reichart; Sergei Lazarev; Geanina A. Butiseacă; Eva M. Niedermeyer; Elmira Aliyeva; Christian G.C. van Baak; Andreas Mulch
... Landlocked basins like the Caspian Sea are highly sensitive to changes in their hydrological budget, especially at times of disconnection from the global ocean. Here, we reconstruct the Pliocene to Pleistocene palaeohydrological and palaeoenvironmental changes occurring in the South Caspian Basin between ~3.6 and ~ 1.9 Ma, using compound-specific hydrogen isotope (δ²H) data on long chain n-alkanes ...
Siberia; advection; air temperature; cold; cooling; data collection; latitude; sea level; simulation models; surface water temperature; troposphere; Eurasia; North America
Abstract:
... Observations during 1990–2014 depict concurrent cooling trends in land surface air temperature (LSAT) over central-eastern Eurasia (CEE) and northwestern North America (NWNA), while significant warming trends are observed in other areas across the Northern Hemisphere (NH). This lack of surface warming of the continental CEE and NWNA is termed continental warming holes (CWH) here. The ability of th ...
Mateusz Płóciennik; Izabela Zawiska; Monika Rzodkiewicz; Agnieszka M. Noryśkiewicz; Michał Słowiński; Daniela Müller; Achim Brauer; Olga Antczak-Orlewska; Mateusz Kramkowski; Odile Peyron; Liisa Nevalainen; Tomi P. Luoto; Bartosz Kotrys; Heikki Seppä; Jon Camuera Bidaurreta; Marta Rudna; Małgorzata Mielczarek; Edyta Zawisza; Ewa Janowska; Mirosław Błaszkiewicz
Cladocera; Holocene epoch; air temperature; atmospheric precipitation; catenas; climate; cold; glaciation; lakes; littoral zone; nutrient availability; phytoplankton; pollen; summer; total phosphorus; Eastern European region; Northern European region; Poland
Abstract:
... The Younger Dryas (YD) is a roughly 1,100-year cold period marking the end of the last glaciation. Climate modelling for northern Europe indicates high summer temperatures and strong continentality. In eastern Europe, the scale of temperature variation and its influence on ecosystems is weakly recognised. Here, we present a multi-proxy reconstruction of YD conditions from Lake Gościąż (central Pol ...
Sequoia sempervirens; air; air temperature; basalt; base flow; climate change; coasts; cold; freshwater; groundwater; habitats; lithology; rain; regression analysis; sandstone; snow; snowmelt; streams; summer; sustainable forestry; water temperature; watersheds; California; Cascade Mountain region
Abstract:
... Thermal regimes in headwater streams are critical for freshwater ecological condition and habitat resilience to disturbance, and to inform sustainable forest management. However, stream temperatures vary depending on characteristics of the stream, catchment, or region. To improve our knowledge of stream thermal regimes, we collected stream and air temperature data along eight headwater streams in ...
air temperature; climate; cold; data collection; dynamics; satellites; shortwave radiation; summer; weather research and forecasting model; China
Abstract:
... Two regional climate simulation experiments (spectral nudging and re-initialization) at convection-permitting scale are conducted using the WRF model driven by the 4th generation Global Reanalysis data (ERA5) from European Centre for Medium-Range Weather Forecasts over the Tibetan Plateau (TP). The surface air temperature (T2m) and the precipitation in summer during 2016–2018 are evaluated against ...
air temperature; beautification; cold; environment; landscapes; rain; relative humidity; summer; surface temperature
Abstract:
... In this study, the cooling effects of urban green roofs and water misting were explored for buildings in cold regions during the summer. We selected five different plant types and water-misted areas on the roof of a commercial building in Xi’an, and obtained temperature and humidity field measurements for the planted and water-misted areas, and concrete roofing as a control. Measurements and theor ...
Japan; Siberia; air; air pollution; air quality; air temperature; cold; environmental management; insulating materials; internal temperature; summer; Alaska; Antarctica; Arctic region
Abstract:
... Low-cost PM₂.₅ sensors are now used worldwide to assess air pollution. However, their operation is generally challenging in severely cold regions like Siberia, Alaska, the Arctic, and Antarctica. We made an insulation box with automatic internal temperature control developed for a low-cost PM₂.₅ sensor to maintain a warm operational environment with four light-bulb heaters when the air temperature ...
air; air temperature; cold; cooling; energy efficiency; heat transfer; prototypes
Abstract:
... This study presents a prototype of an independent modular air containment (MAC) system that overcomes the limitations of the existing room-based cooling and applies a row-based cooling system for a high-density data center that can meet the requirements of energy efficiency. Furthermore, to improve the cooling efficiency and safety, we developed a novel in-row cooling package with multiple heat-tr ...
Heracleum persicum; Russia; air; air temperature; autumn; cold; heat; probability; snowpack; soil; viability; winter; Finland; Northern European region; Scandinavia
Abstract:
... This paper analyzes the distribution of Heracleum persicum, H. mantegazzianum, and H. sosnowskyi at the northern limit of their secondary ranges in Europe based on original and published data. The northernmost H. persicum occurrences are localized in coastal regions in the northern and central parts of the Scandinavian Peninsula (up to 71° N). In Fennoscandia, H. mantegazzianum and H. sosnowskyi w ...
air temperature; ambient temperature; cold; environmental assessment; exergy; fluid mechanics; greenhouse gases; heat pumps; heat transfer; ice; momentum; ozone depletion; renewable energy sources; snow; snowpack; soil depth; soil temperature; soil types; system optimization; temperature profiles
Abstract:
... In recent years, due to the use of renewable energy such as geothermal and capability of reduction of energy consumption and greenhouse gas emissions by ground source heat pumps, these heat pump cycles have attracted considerable attention as a green energy system. The variations in temperature of soil play an important role in efficiency of ground source heat pump cycles which is determined by so ...
air; air temperature; animal husbandry; autumn; climate; cold; dynamics; latitude; models; sea ice; winter; Arabian Sea; Arctic Ocean; Arctic region; Atlantic Ocean; Bay of Bengal; Beaufort Sea; China; Lake Baikal; Norwegian Sea
Abstract:
... Extreme cold events (ECEs) on the Tibetan Plateau (TP) exert serious impacts on agriculture and animal husbandry and are important drivers of ecological and environmental changes. We investigate the temporal and spatial characteristics of the ECEs on the TP and the possible effects of Arctic sea ice. The daily observed minimum air temperature at 73 meteorological stations on the TP during 1980–201 ...