Results 81 to 90 of about 24,992 (279)

Growing Degree‐Day Trends Associated With ‘False Springs’ in the Continental United States

International Journal of Climatology, EarlyView.
Earlier spring warming has increased growing degree‐day (GDD) accumulation prior to the last freeze at some US locations (red circles = stat. sig. increases). However, after accounting for spatial autocorrelation using a false discovery rate approach, few trends remain significant, indicating no coherent continental‐scale increase in false spring risk.
Robert E. Davis, Julia Finkbeiner, Marion Donald, Manuel Lerdau   +3 more
wiley   +1 more source

Spatial-Temporal Distribution of the Freeze–Thaw Cycle of the Largest Lake (Qinghai Lake) in China Based on Machine Learning and MODIS from 2000 to 2020

Remote Sensing, 2021
The lake ice phenology variations are vital for the land–surface–water cycle. Qinghai Lake is experiencing amplified warming under climate change. Based on the MODIS imagery, the spatio-temporal dynamics of the ice phenology of Qinghai Lake were analyzed
Weixiao Han, Chunlin Huang, Juan Gu, Jinliang Hou, Ying Zhang   +4 more
doaj   +1 more source

Interactions between carbon and nitrogen dynamics in estimating net primary productivity for potential vegetation in North America [PDF]

, 1992
We use the terrestrial ecosystem model (TEM), a process-based model, to investigate how interactions between carbon (C) and nitrogen (N) dynamics affect predictions of net primary productivity (NPP) for potential vegetation in North America. Data on pool
Joyce, L. A., Kicklighter, David W., McGuire, A. David, Melillo, Jerry M., Moore, Berrien, III, Schloss, Annette L., Vorosmarty, Charles J.   +6 more
core   +2 more sources

Lake Ice Phenology Extraction using Machine Learning Methodology

IOP Conference Series: Earth and Environmental Science, 2020
Abstract Lake-ice phenology is one of the key cryosphere indicators. Based on changes in time series of daily lake ice coverage and the microwave brightness temperature, two machine-learning methods were selected for estimating the phenology of lake ice.
Pengfei Xie, Yubao Qiu, XingXing Wang, Lijuan Shi, Wenshan Liang   +4 more
openaire   +1 more source

Long‐Term Variability and Spatial Differentiation of the Frost‐Free Period in Iceland

International Journal of Climatology, EarlyView.
Warming in Iceland (May–September) is expressed as fewer Tmin < 0°C days in the interior and more Tmin > 0°C days along the coasts. ABSTRACT Climate change in subarctic regions leads to significant transformations in thermal conditions; however, the long‐term variability of the frost‐free season (FFS)—and consequently, the growing period—remains poorly
Katarzyna Piotrowicz, Katarzyna Szyga‐Pluta, Alicja Szklarczyk, Ewa Przedpełska‐Wąsowicz   +3 more
wiley   +1 more source

Despite a century of warming, increased snowfall has buffered the ice phenology of North America’s largest high-elevation lake against climate change

Environmental Research Letters
Lakes are sentinels of environmental change. In cold climates, lake ice phenology—the timing and duration of ice cover during winter—is a key control on ecosystem function.
Lusha M Tronstad, Isabella A Oleksy, Justin P F Pomeranz, Daniel L Preston, Gordon Gianniny, Katrina Cook, Ana Holley, Phil Farnes, Todd M Koel, Scott Hotaling   +9 more
doaj   +1 more source

Cold hardening and dehardening in Salix [PDF]

, 2003
The variation in cold hardiness in Salix in the autumn was investigated using clones of different geographic origins. In late growing season, the variation was small and inversely related to a phenotypic variation in potential growth rate.
Lennartsson, Mattias
core  

Bridging the Climate Information Gap: A Framework for Engaging Knowledge Brokers and Decision Makers in State Climate Assessments [PDF]

, 2016
Large-scale analyses like the National Climate Assessment (NCA) contain a wealth of information critical to national and regional responses to climate change but tend to be insufficiently detailed for action at state or local levels.
Betts, Alan K, Carlson, Sam, Ford, Sarah, Galford, Gillian L, Hoogenboom, Ann, Markowitz, Deborah, Nash, Andrew, Nash, Julie, Palchak, Elizabeth, Pears, Sarah, Underwood, Kristen L   +10 more
core   +2 more sources

Extreme Climate Events in Morocco: Historical Analysis and Future Projections Based on CMIP6 Simulations

International Journal of Climatology, EarlyView.
Historical observations and bias‐corrected CMIP6 projections reveal intensifying warm extremes, declining cold events and increasingly irregular precipitation patterns across Morocco. Future warming, particularly under SSP5‐8.5, produces an almost linear amplification of heat, aridity and hydrological stress, leading to longer droughts and more intense
Oualid Hakam, Abdelhakim Amazirh, El Houssaine Bouras, Victor Ongoma, Abdelghani Chehbouni   +4 more
wiley   +1 more source

Effects of deficit irrigation and biostimulants on melon productivity and quality in semi‐arid conditions

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Water scarcity and soil salinization are major constraints to irrigated agriculture in semi‐arid regions, affecting crop productivity and fruit quality. Combining deficit irrigation with biostimulant application has emerged as a promising strategy to improve water use efficiency and plant stress tolerance.
Jefferson dos Santos Gomes Calaça, Jean Carlos Nogueira, José Raliuson Inácio Silva, Denizard Oresca, Alan Cezar Bezerra, Raquele Mendes de Lira, George do Nascimento Araújo Júnior, Luiz Guilherme Medeiros Pessoa, Agda Raiany Mota dos Santos, Sidney Antônio da Silva, Guilherme Heverton Lima e Silva, Douglas Nogueira Lima, Eduardo Soares de Souza   +12 more
wiley   +1 more source