Sentences with phrase «global terrestrial»

Provided daily Linux System Administration support consisting of proprietary and COTS hardware and software networked via global terrestrial and RF / satellite communications equipment in support of 7x24X365 Network Operations.

Sixteen years of change in the global terrestrial human footprint and implications for biodiversity conservation

Friedlingstein, P., G. Joel, C.B. Field, and I.Y. Fung, 1999: Toward an allocation scheme for global terrestrial carbon models.

Nemani R, Keeling C, Hashimoto H, Jolly W, Piper S, Tucker C, Myneni R, Running S (2003) Climate - Driven Increases in Global Terrestrial Net Primary Production from 1982 to 1999.

By contrast, in mid - to high latitudes on all continents, substantial shifts in forest structure toward more rain - green, summer - green or deciduous rather than evergreen forest, and forest and woodland decline, underlie the overall drop in global terrestrial carbon sequestration potential that occurs post-2030, and approaches a net source by about 2070 (Figure 4.2; 4.3).

Approximately 200 boreholes of varying depths have been identified for permafrost monitoring by International Permafrost Association (IPA) Global Terrestrial Network for Permafrost8 (GTN - P), which includes monitoring activities of the Geological Survey of Canada.

The Brazilian portion of the Amazon comprises 4 × 106 km2, 12 less than 1 percent of global land area, but disproportionally important in terms of aboveground terrestrial biomass (15 percent of global terrestrial photosynthesis [Field et al., 1998]-RRB- and number of species (~ 25 percent, Dirzo and Raven, 2003).

Global Observing Systems Information Center (GOSIC) provides convenient, central, one - stop access to data and information identified by the Global Climate Observing System (GCOS), the Global Ocean Observing System (GOOS) and the Global Terrestrial Observing System (GTOS) and their partner programs, such as the Global Atmosphere Watch (GAW) and regional observing systems, such as the GOOS Regional Alliances (GRA).

Global terrestrial temperature data are gravely compromised because more than three - quarters of the 6,000 stations that once existed are no longer reporting.

In recent years, many have expressed concerns that global terrestrial NPP should be falling due to the many real (and imagined) assaults on Earth's vegetation that have occurred over the past several decades — including wildfires, disease, pest outbreaks, and deforestation, as well as overly - hyped changes in temperature and precipitation.

Global terrestrial temperature data are gravely compromised because more than three - quarters of the 6,000 stations that once existed are no longer having their reports included in the database.

Therefore, it is imperative that we are capable of anticipating the potential responses of global terrestrial vegetation to future changes in climate and atmospheric chemistry.

Latest Cretaceous global terrestrial ecology was fire prone and likely to have been adapted to fire.

Li, P., Peng, C., Wang, M., Li, W., Zhao, P., Wang, K., Yang, Y. and Zhu, Q. (2017) «Quantification of the response of global terrestrial net primary production to multifactor global change.»

Systematic measurements of permafrost (thermal state and active layer) began in earnest around 1950 and were coordinated under the Global Terrestrial Network for Permafrost.

Climate - driven increases in global terrestrial net primary production from 1982 to 1999.

Comment on «Drought - Induced Reduction in Global Terrestrial Net Primary Production from 2000 Through 2009»

«The GOSIC Portal provides convenient, central, one - stop access to data and information identified by the Global Climate Observing System (GCOS), the Global Ocean Observing System (GOOS) and the Global Terrestrial Observing System (GTOS) and their partner programs....»

Climate driven increases in global terrestrial net primary production from 1982 to 1999 http://cliveg.bu.edu/globalgarden/nemanietal-science.htm «Most of the observed climatic changes have been in the direction of reducing climatic constraints to plant growth.»

Climate - driven increases in global terrestrial net primary production from 1982 to 1999.

These correlations were negative, suggesting that when average fire weather seasons are longer - than - normal or when long seasons impacted more global burnable area, net global terrestrial carbon uptake is reduced.

Working from a 95 - year data set of global terrestrial climate, Simon Hay of the University of Oxford and his colleagues scrutinized long - term climate trends for the four highland sites.

A recent NASA study showed that these regions are the biggest terrestrial carbon dioxide sinks on our planet, absorbing 1.4 billion metric tons of CO2 out of a total global terrestrial absorption of 2.5 billion.

All told, by Luyssaert's calculations the relatively small remaining stands of old - growth forests in the U.S. Pacific Northwest as well as Canada and Russia consume «8 to 20 percent of the global terrestrial carbon sink,» or roughly 440.9 million tons (0.4 gigatonnes) of carbon per year.

Unveiling the strategy, Mr Smith said: «When we first started to roll out our global terrestrial TV programme, people thought I was nuts, «going backwards», and a victim of my own hubris.

«When we first started to roll out our global terrestrial TV programme, people thought I was nuts, «going backwards», and a victim of my own hubris.

Not exact matches

Global change research encompasses a wide variety of study areas, including atmospheric sciences, ecology, global carbon cycles, climatology, and terrestrial procGlobal change research encompasses a wide variety of study areas, including atmospheric sciences, ecology, global carbon cycles, climatology, and terrestrial procglobal carbon cycles, climatology, and terrestrial processes.

Amphibians are a group that is highly sensitive to global warming due to the permeability of their skin and their complex lifecycle, which combines an aquatic stage as larvae and a terrestrial stage when young and as adults.

This global biological recordbased on daily observations of ocean algae and land plants from NASAs Sea - viewing Wide Field - of - View Sensor (SeaWiFS) missionwill enable scientists to study the fate of atmospheric carbon, terrestrial plant productivity and the health of the oceans food web.

It included graphs that appeared to show a remarkably close correlation between solar activity and terrestrial temperatures — suggesting that other factors, such as carbon dioxide levels, have little influence on global temperatures.

Now a group of American and British scientists have used a new chemical technique to measure the change in terrestrial temperature associated with this shift in global atmospheric CO2 concentrations.

Here, we review the likelihood of continued changes in terrestrial climate, including analyses of the Coupled Model Intercomparison Project global climate model ensemble.

Beyond wildlife concerns, Canada's boreal forest, which stretches from coast to coast, comprises perhaps the world's largest terrestrial storehouse of carbon dioxide, so it is critical to keep it intact to help mitigate global warming.

«To cause this type of global isotopic shift, you'd have to take all terrestrial plants and burn them into carbon dioxide,» Kessler says, which seems unlikely.

The working group on coupled biogeochemical cycling and controlling factors dealt with questions regarding the role of plankton diversity, how ocean biogeochemistry will respond to global changes on decadal to centennial time scales, the key biogeochemical links between the ocean, atmosphere, and climate, and the role of estuaries, shelves, and marginal seas in the capturing, transformation, and exchange of terrestrial and open - marine material.

A global inventory by McGill University environmental scientist Gail Chmura found that mangroves pack away carbon faster than terrestrial forests.

Many uncultured microbes play unknown roles in regulating Earth's biogeochemical processes; everything from regulating plant health to driving nutrient cycles in both terrestrial and marine environments, processes that can impact global climate.

The 193 national signatories of the Convention of Biological Diversity (CBD) made a global commitment in 2010 to increase the world's terrestrial protected area network from 13 to 17 percent by the year 2020.

An article published in the Global Biogeochemical Cycles on 20th of February 2018 estimates that solar radiation mineralizes 45 teragrams of terrestrial dissolved organic carbon in the ocean.

In this latest study, the team of researchers applied empirical and process - based models, to analyze local areas, as well as the global surface, and the effect of temperature and water availability variations on carbon exchange between the atmosphere and the terrestrial biosphere.

We know that air pollution seriously damages human health and terrestrial ecosystems but this «new» source of soluble iron can potentially increase the amount of carbon dioxide stored in the oceans and, thus, inadvertently offset global warming.»

Based on the data, the scientists conclude that «worldwide rice production is responsible for [about] 1 percent of atmospheric methyl bromide and 4 percent of atmospheric methyl iodide» and that «methyl iodide emissions from rice paddies provide a sizable terrestrial source to the global budget.»

«[This] study has important global implications, because we know early plants cooled the climate and increased the oxygen level in the Earth's atmosphere,» conditions that supported the expansion of terrestrial animal life, says Tim Lenton, an earth system scientist at the University of Exeter in the United Kingdom who was not involved with the work.

Evidence for approximately contemporaneous global cooling in sediments that do contain YTT glass shards has been found in marine core oxygen isotope records from the South China Sea (3), as have terrestrial carbon isotope and pollen records from Northern India and Bengal (23).

To date therefore, a combination of insufficient resolution in marine and terrestrial sediments bearing the YTT and a lack of YTT ash in the polar ice cores has prevented precise evaluation of the YTT's impact on global climate and hominin populations.

«Our estimates suggest that, currently, the global established forests which are outside the [tropics] alone can account for the terrestrial carbon sink,» the study found.

Cory Cleveland, a UM professor of terrestrial ecosystem ecology, said that previous research in the wet tropics — where much of global forest productivity occurs — indicates that the increased rainfall that may occur with climate change would cause declines in plant growth.

During the Mesozoic, drifting continents and fluctuating sea levels created a dynamic global system, influencing the distribution of animals and the evolution of terrestrial ecosystems.

«Breathing» of the terrestrial biosphere: lessons learned from a global network of carbon dioxide flux measurement systems.

Carozza et al (2011) find that natural global warming occurred in 2 stages: First, global warming of 3 ° to 9 ° C accompanied by a large bolus of organic carbon released to the atmosphere through the burning of terrestrial biomass (Kurtz et al, 2003) over approximately a 50 - year period; second, a catastrophic release of methane hydrate from sediment, followed by the oxidation of a part of this methane gas in the water column and the escape of the remaining CH4 to the atmosphere over a 50 - year period.