搜索结果: 1-15 共查到“理学 carbon cycle”相关记录37条 . 查询时间(0.11 秒)
Changes in ocean chemistry show how sea level affects global carbon cycle（图）
ocean chemistry sea level global carbon cycle
2021/4/9
A new analysis of strontium isotopes in marine sediments has enabled scientists to reconstruct fluctuations in ocean chemistry reflecting changing climate conditions over the past 35 million years.The...
中国地质大学科学技术发展院黄咸雨，谢树成等地学院BGEG国家重点实验室 Nature Communications，April 2018. Response of carbon cycle to drier conditions in the mid-Holocene in central China（图）
泥炭；地碳；循环；气候；变化
2021/10/21
2018年4月10日，中国地质大学地球科学院和生物地质与环境地质国家重点实验室学科团队在《Nature Communications》上发表题为“Response of carbon cycle to drier conditions in the mid-Holocene in central China”（长江中游泥炭地碳循环对中全新世干旱事件的响应）的研究论文。该文第一作者为黄咸雨副教授，谢...
Stanford research finds that diversity of large animals plays an important role in carbon cycle
Stanford diversity of large animals plays carbon cycle
2017/10/25
Trees in tropical forests are well known for removing carbon dioxide from the air and storing the potent greenhouse gas as carbon in their leafy branches and extensive roots. But a new analysis led by...
Two undergrads improve plant carbon-cycle models（图）
Two undergrads improve plant carbon-cycle models
2017/9/1
In the summer of 2012, two undergraduate students tackled a problem that plant ecology experts had overlooked for 30 years. The students demonstrated that different plant species vary in how they take...
Tiny Shells Indicate Big Changes to Global Carbon Cycle
Tiny Shells Indicate Big Changes Global Carbon Cycle
2017/7/20
Experiments with tiny, shelled organisms in the ocean suggest big changes to the global carbon cycle are underway, according to a study from the University of California, Davis. For the stud...
Polar glaciers may be home to previously undiscovered carbon cycle
Polar glaciers home to previously undiscovered carbon cycle
2017/4/27
Microbes in streams flowing on the surface of glaciers in the Arctic and Antarctic may represent a previously underestimated source of organic material and be part of an as yet undiscovered "dynamic l...
Radiocarbon in Corals: Records of the Carbon Cycle, Surface Circulation and Climate
Carbon Cycle Surface Circulation
2015/7/31
For more than two decades, coral skeletons have been used to reconstruct records of isotopic and chemical ratios in surface seawater (for reviews, see Druffel, 1997a; Gagan et al., 2000). Here I demon...
Understanding the Role of the Biological Pump in the Global Carbon Cycle:An Imperative for Ocean Science
Biological Pump Global Carbon Cycle Ocean Science
2015/7/20
Anthropogenically driven climate change will rapidly become Earth's dominant transformative influence in the coming decades. The oceanic biological pump—the complex suite of processes that results in ...
Ocean Dynamics and the Carbon Cycle:Principles and Mechanisms
Ocean Dynamics Carbon Cycle Principles and Mechanisms
2015/7/15
Williams and Follows combined their expertise to write a book targeted at honors undergraduate or graduate students, as well as at professionals in ocean science who need to learn the fundamentals of ...
Various human activities, including
fossil fuel combustion and forest clearing, emit
about eight petagrams (or billion tons) of carbon
in the form of CO2 into the atmosphere annually.
The glob...
BOOK REVIEW | Chemical Oceanography and the Marine Carbon Cycle
Chemical Oceanography Marine Carbon Cycle
2015/7/3
Chemical Oceanography and the Marine Carbon Cycle reflects the two authors' wealth of research and teaching experience, and the community is fortunate that Steve Emerson was able to complete this majo...
Humans concerned about climate change are working to find ways of capturing excess carbon dioxide (CO2) from the atmosphere and sequestering it in the Earth. But Nature has its own methods for the rem...
Record of Early Toarcian carbon cycle perturbations in a nearshore environment: the Bascharage section (easternmost Paris Basin)
Black shale deposit early Jurassic the negative carbon isotope
2015/1/6
In order to understand the significance of the worldwide deposition of black shale facies in the Early Toarcian (~ 183 Ma), considerable attention has been drawn to this Early Jurassic sub-stage over ...
Limiting the parameter space in the Carbon Cycle Data Assimilation System (CCDAS)
Limiting the parameter space Carbon Cycle Data Assimilation System
2014/12/19
Terrestrial ecosystem models are employed to calculate the sources and sinks of carbon dioxide between land and atmosphere. These models may be heavily parameterised. Where reliable estimates are unav...
Quantifying the model structural error in carbon cycle data assimilation systems
Quantifying the model structural error carbon cycle data assimilation systems
2014/12/17
This study explores the impact of the structural error of biosphere models when assimilating net ecosystem exchange (NEE) measurements or CO2 concentration measurements to optimise uncertain model par...