They describe 24 stages or timings associated with seasonal changes in phenology and agricultural activity throughout a year. Qian et al. from the Key Laboratory of Regional Climate-Environment for East Asia, Chinese Academy of Sciences, quantitatively defined the somewhat 'astronomic' term for the first time, based on modern temperature records.
This facilitated an investigation of changes in the climatic Solar Terms under global warming over the past half-century. Their results were based on a recently developed homogenized dataset of daily temperature observations, dating to 1960.
According to these results, the timings of the climatic Solar Terms during the warming phase (around spring) of the seasonal cycle have significantly advanced (by 6-15 days) from the 1960s to the present.
Across China, timings during the cooling phase (around autumn) have delayed by 5-6 days on average. This is mainly because of a warming shift of the entire seasonal temperature cycle, as illustrated in the figure. Four particular phenology-related climatic Solar Terms, namely the Waking of Insects, Pure Brightness, Grain Full, and Grain in Ear, have advanced almost everywhere in the country (as much as 20 days in North China).This has important implications for agricultural planning. The numbers of extremely cold (Great Cold) days decreased by 56.8% over the last 10 years as compared with the 1960s, whereas those of extremely hot (Great Heat) days increased by 81.4%. The paper entitled 'Climatic changes in the Twenty-four Solar Terms during 1960-2008' is published in Chinese Science Bulletin, 2012, Vol 57(2).
See the article: Qian C, Yan Z W, Fu C B. Climatic changes in the Twenty-four Solar Terms during 1960-2008, Chinese Sci. Bull., 2012, 57(2): 276-286
Yan ZhongWei | EurekAlert!
Invasive Insects Cost the World Billions Per Year
04.10.2016 | University of Adelaide
Malaysia's unique freshwater mussels in danger
27.09.2016 | The University of Nottingham Malaysia Campus
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
21.10.2016 | Health and Medicine
21.10.2016 | Information Technology
21.10.2016 | Materials Sciences