Download or read book Multi property Modeling of Ocean Basin Carbon Fluxes Final Report written by T. Volk and published by . This book was released on 1988 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1994-08 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1700 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Space based Remote Sensing of the Earth A Report to the Congress written by United States. National Oceanic and Atmospheric Administration and published by . This book was released on 1987 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Oceanic Processes Program written by and published by . This book was released on 1986 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book SeaWiFS Technical Report Series written by Michael Darzi and published by . This book was released on 1992 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Space based Remote Sensing of the Earth written by and published by . This book was released on 1987 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Space based Remote Sensing of the Earth and Its Atmosphere written by and published by . This book was released on 1986 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1989 with total page 1326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monitoring Measurement and Verification of Greenhouse Gas Emissions Parts I and II written by United States. Congress. House. Committee on Science and Technology (2007). Subcommittee on Energy and Environment and published by . This book was released on 2009 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Strategic Plan for the U S Climate Change Science Program written by Climate Change Science Program (U.S.) and published by . This book was released on 2003 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simulations of the Global Carbon Cycle and Anthropogenic CO sub 2 Transient Final Report written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The major emphasis of our DOE funded research was to study the redistribution of anthropogenic carbon in the climate system and to constrain the global budgets of anthropogenic carbon and the carbon isotopes[sup 13]C and[sup 14]C for the historical period. We have continued the development of box models of the ocean carbon cycle (HILDA model) and the land biota. The coupled model (Bern model) was chosen as the reference model for scenario calculations and the calculations of global warming potential by the Intergovernmental Panel on Climate Change. These models were applied (1) to estimate the uptake of anthropogenic carbon by the ocean and the land biosphere for the last 200 years; (2) to investigate uncertainties in deconvolved fertilization fluxes into the land biota due to uncertainties in ice core CO[sub 2] data; (3) to study the relationship between future atmospheric CO[sub 2] levels and carbon emissions; (4) to investigate the budgets of bomb-produced radiocarbon and fossil[sup 13]C. We assessed the utility of bomb-produced and natural[sup 13]C observations to validate ocean models of anthropogenic CO[sub 2] uptake and tested the eddy diffusion parameterization of large-scale vertical transport in ocean box models. For this, vertical tracer transport in box-diffusion models and the 3-D ocean general circulation model from GFDL/Princeton was compared. We analyzed the distribution of the conservative property[Delta]C* to obtain a direct estimate based on marine measurements of the uptake of anthropogenic CO[sub 2] by the North Atlantic. We contribute to the missing sink debate by using atmospheric CO[sub 2] and[sup 13]C levels to disentangle the net carbon fluxes into the land biota and the ocean. A simplified representation for 4 different ocean models of anthropogenic CO[sub 2] uptake based on mixed-layer pulse response functions was developed.

Download or read book Atmospheric 14CO2 Constraints on and Modeling of Net Carbon Fluxes 06 ERD 031 An LLNL Exploratory Research in the Directorate s Final Report written by and published by . This book was released on 2009 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: A critical scientific question is: 'what are the present day sources and sinks of carbon dioxide (CO2) in the natural environment, and how will these sinks evolve under rising CO2 concentrations and expected climate change and ecosystem response'? Sources and sinks of carbon dioxide impart their signature on the distribution, concentration, and isotopic composition of CO2. Spatial and temporal trends (variability) provide information on the net surface (atmosphere to ocean, atmosphere to terrestrial biosphere) fluxes. The need to establish more reliable estimates of sources and sinks of CO2 has lead to an expansion of CO2 measurement programs over the past decade and the development of new methodologies for tracing carbon flows. These methodologies include high-precision pCO2, [delta]13CO2, and [O2/N2] measurements on atmospheric constituents that, when combined, have allowed estimates of the net terrestrial and oceanic fluxes at decadal timescales. Major gaps in our understanding remain however, and resulting flux estimates have large errors and are comparatively unconstrained. One potentially powerful approach to tracking carbon flows is based on observations of the 14C/12C ratio of atmospheric CO2. This ratio can be used to explicitly distinguish fossil-fuel CO2 from other sources of CO2 and also provide constraints on the mass and turnover times of carbon in land ecosystems and on exchange rates of CO2 between air and sea. Here we demonstrated measurement of 14C/12C ratios at 1-2{per_thousand} on archived and currently collected air samples. In parallel we utilized the LLNL-IMPACT global atmospheric chemistry transport model and the TransCom inversion algorithm to utilize these data in inversion estimates of carbon fluxes. This project has laid the foundation for a more expanded effort in the future, involving collaborations with other air-sampling programs and modeling groups.

Download or read book Climate Change 2021 The Physical Science Basis written by Intergovernmental Panel on Climate Change (IPCC) and published by Cambridge University Press. This book was released on 2023-07-26 with total page 2410 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Working Group I contribution to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) provides a comprehensive assessment of the physical science basis of climate change. It considers in situ and remote observations; paleoclimate information; understanding of climate drivers and physical, chemical, and biological processes and feedbacks; global and regional climate modelling; advances in methods of analyses; and insights from climate services. It assesses the current state of the climate; human influence on climate in all regions; future climate change including sea level rise; global warming effects including extremes; climate information for risk assessment and regional adaptation; limiting climate change by reaching net zero carbon dioxide emissions and reducing other greenhouse gas emissions; and benefits for air quality. The report serves policymakers, decision makers, stakeholders, and all interested parties with the latest policy-relevant information on climate change. Available as Open Access on Cambridge Core.