Related Experiment Video
Updated: Oct 30, 2025
06:10
Using Generative Art to Convey Past and Future Climate Transitions
Published on: March 31, 2023
1.2K
Spatial-Temporal Changes and Associated Determinants of Global Heating Degree Days
Yuanzheng Li1,2, Jinyuan Li1, Ao Xu1
1School of Resources and Environment, Henan University of Economics and Law, Zhengzhou 450046, China.
Summary
Global heating degree days (HDDs) are decreasing, especially at higher latitudes, indicating climate warming impacts. Future trends suggest sustainability, with HDDs influenced by factors like latitude, altitude, and pollution.
Area of Science:
- Environmental Science
- Climatology
- Energy Consumption Studies
Background:
- Heating degree days (HDDs) effectively indicate climate's impact on winter energy use and thermal conditions.
- Limited research exists on global spatial-temporal HDD changes and their drivers.
Purpose of the Study:
- To investigate global HDD spatial distribution and interannual changes over 49 years.
- To identify critical determinants influencing HDD variations and trends.
Main Methods:
- Utilized multi-source data and various analytical methods.
- Employed machine learning for simulating HDDs and their change rates.
Main Results:
- Global HDDs generally increase with latitude and altitude.
- Most regions show decreasing HDD change rates (p < 0.10), particularly at higher latitudes.
- Significant correlations found between HDDs/change rates and latitude, altitude, albedo, EVI, PM2.5, and nighttime light intensity (p = 0.000).
Conclusions:
- Future global HDDs are projected to show sustainability trends.
- Machine learning accurately simulates HDD dynamics (RMSEs: 564.08 °C*days and 3.59 °C*days*year⁻¹).
- Findings support climate change response, sustainable development, and environmental planning.
Related Concept Videos
01:50Global Climate Change
27.0K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
27.0K
01:17Radiation: Applications
1.3K
The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
The average...
The average...
1.3K
01:16What is Climate?
19.5K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
19.5K
01:07What is Weather?
18.7K
Overview
18.7K
02:44Heating and Cooling Curves
25.0K
When a substance—isolated from its environment—is subjected to heat changes, corresponding changes in temperature and phase of the substance is observed; this is graphically represented by heating and cooling curves.
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
25.0K
02:46Quantifying Heat
59.4K
Thermal Energy Microscopically, thermal energy is the kinetic energy associated with the random motion of atoms and molecules. Temperature is a quantitative measure of “hot” or “cold”, which depends on the amount of thermal energy. When the atoms and molecules in an object are moving or vibrating quickly, they have a higher average kinetic energy (KE) (or higher thermal energy), and the object is perceived as “hot”, or it is described as being at a...
59.4K