Results 1 to 10 of about 9,203,524 (310)

A degree-day model for forecasting adult phenology of Popillia japonica (Coleoptera: Scarabaeidae) in a temperate climate. [PDF]

open access: yesFront Insect Sci, 2022
Japanese beetle, Popillia japonica (Newman), was first detected in the United States in New Jersey in 1916. The beetle gradually spread to the Midwest U.S. region, and was first confirmed in Minnesota in the late 1960’s.
Ebbenga DN   +3 more
europepmc   +2 more sources

Heating degree day spatial datasets for Canada. [PDF]

open access: yesData Brief, 2023
Heating degree days (HDD) represent a concise measure of heating energy requirements used to inform decision making about the impact of climate change on heating energy demand. This data paper presents spatial datasets of heating degree days (HDD) for Canada for two thirty-year periods, 1951-1980 and 1981-2010, using daily temperature gauge ...
MacDonald H   +5 more
europepmc   +4 more sources

The influence of diurnal temperature variation on degree-day accumulation and insect life history. [PDF]

open access: yesPLoS One, 2015
Ectotherms, such as insects, experience non-constant temperatures in nature. Daily mean temperatures can be derived from the daily maximum and minimum temperatures.
Chen S   +3 more
europepmc   +2 more sources

A simple physics-based improvement to the positive degree day model [PDF]

open access: yesJournal of Glaciology, 2018
Meltwater is important to understanding glacier health and dynamics. Since melt measurements are uncommon, ice ablation estimates are often based on models including the positive degree day (PDD) model.
Ruan, Xiaozhou, Tsai, Victor C.
core   +2 more sources

Estimating degree-day factors of snow based on energy flux components

open access: yesThe Cryosphere, 2023
. Meltwater from mountainous catchments dominated by snow and ice is a valuable source of fresh water in many regions. At mid-latitudes, seasonal snow cover and glaciers act like a natural reservoir by storing precipitation during winter and releasing it
M. Ismail   +4 more
semanticscholar   +1 more source

Rice (Oryza sativa L.) Growth Modeling Based on Growth Degree Day (GDD) and Artificial Intelligence Algorithms

open access: yesAgriculture, 2022
Rice (Oryza sativa L.) growth prediction is key for precise rice production. However, the traditional linear rice growth forecasting model is ineffective under rapidly changing climate conditions.
Li-Wei Liu   +5 more
semanticscholar   +1 more source

Positive degree-day sums in the Alps: a direct link between glacier melt and international climate policy

open access: yesJournal of Glaciology, 2022
Annual balances of eight alpine glaciers were slightly negative for 1961–90 and highly negative for 1991–2018. We explain this by changes in positive degree-day sums and summer temperatures extrapolated to the median altitudes of the glaciers.
R. Braithwaite, P. Hughes
semanticscholar   +1 more source

Differentiating Snow and Glacier Melt Contribution to Runoff in the Gilgit River Basin via Degree-Day Modelling Approach

open access: yesAtmosphere, 2020
In contrast to widespread glacier retreat evidenced globally, glaciers in the Karakoram region have exhibited positive mass balances and general glacier stability over the past decade.
Yasir Latif   +6 more
semanticscholar   +1 more source

Comparative Study of Hydrology and Icemelt in Three Nepal River Basins Using the Glacio-Hydrological Degree-Day Model (GDM) and Observations From the Advanced Scatterometer (ASCAT)

open access: yesFrontiers in Earth Science, 2020
An assessment of the water supply and its seasonal and annual changes over the century in the High Mountain Asia (HMA) region is of increasing interest due to its potential impact on one-sixth of the global population. In order to understand the changing
R. Kayastha   +4 more
semanticscholar   +1 more source

Using Degree-Day Methodology to Ascertain Early Flight Periods of Michigan Butterflies and Skippers [PDF]

open access: yes, 2018
Butterflies and skippers have been collected in Michigan for over 130 years and the accompanying data labels continue to provide significant information.
Perkins, Owen A
core   +2 more sources

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