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Author |
Bourassa, M.A., and P.J. Hughes |
Title |
Surface Heat Fluxes and Wind Remote Sensing |
Type |
$loc['typeBook Chapter'] |
Year |
2018 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
245-270 |
Keywords |
HEAT; OCEAN SURFACE; WINDS; SCATTEROMETERS; FLUXE; STRESS; RESPONSES |
Abstract |
The exchange of heat and momentum through the air-sea surface are critical aspects of ocean forcing and ocean modeling. Over most of the global oceans, there are few in situ observations that can be used to estimate these fluxes. This chapter provides background on the calculation and application of air-sea fluxes, as well as the use of remote sensing to calculate these fluxes. Wind variability makes a large contribution to variability in surface fluxes, and the remote sensing of winds is relatively mature compared to the air sea differences in temperature and humidity, which are the other key variables. Therefore, the remote sensing of wind is presented in greater detail. These details enable the reader to understand how the improper use of satellite winds can result in regional and seasonal biases in fluxes, and how to calculate fluxes in a manner that removes these biases. Examples are given of high-resolution applications of fluxes, which are used to indicate the strengths and weakness of satellite-based calculations of ocean surface fluxes. |
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GODAE OceanView |
Place of Publication |
Tallahassee, FL |
Editor |
Chassignet, E. P., A. Pascual, J. Tintoré, and J. Verron |
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$loc['no'] |
Call Number |
COAPS @ user @ |
Serial |
947 |
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Author |
Le Sommer, Julien; Chassignet, E.P.; Wallcraft, A. J. |
Title |
Ocean Circulation Modeling for Operational Oceanography: Current Status and Future Challenges |
Type |
$loc['typeBook Chapter'] |
Year |
2018 |
Publication |
New Frontiers in Operational Oceanography |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
289-305 |
Keywords |
OCEAN MODELING; OCEAN CIRCULATION; PARAMETERIZATIONS |
Abstract |
This chapter focuses on ocean circulation models used in operational oceanography, physical oceanography and climate science. Ocean circulation models area particular branch of ocean numerical modeling that focuses on the representation of ocean physical properties over spatial scales ranging from the global scale to less than a kilometer and time scales ranging from hours to decades. As such, they are an essential build-ing block for operational oceanography systems and their design receives a lot of attention from operational and research centers. |
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GODAE OceanView |
Place of Publication |
Tallahassee, FL |
Editor |
Chassignet, E. P., A. Pascual, J. Tintoré, and J. Verron |
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$loc['no'] |
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COAPS @ user @ |
Serial |
948 |
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Author |
Groenen, D. |
Title |
The Effects of Climate Change on the Pests and Diseases of Coffee Crops in Mesoamerica |
Type |
$loc['typeJournal Article'] |
Year |
2018 |
Publication |
Journal of Climatology & Weather Forecasting |
Abbreviated Journal |
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Volume |
6 |
Issue |
3 |
Pages |
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Keywords |
Coffee; Pests and diseases; Mesoamerica; Climate |
Abstract |
Coffee is an in-demand commodity that is being threatened by climate change. Increasing temperatures and rainfall variability are predicted in the region of Mexico and Central America (Mesoamerica). This region is plagued with pests and diseases that have already caused millions of dollars in damages and losses to the coffee industry.This paper examines three pests that negatively affect coffee plants: the coffee borer beetle, the black twig borer,and nematodes. In addition, this paper examines three diseases that can destroy coffee crops: bacterial blight,coffee berry disease, and coffee leaf rust. This paper will review the literature on how these pests and diseases are predicted to affect coffee crops under climate change models. In general, increased temperatures will increase the spread of pest and disease in coffee crops. Projected decreased rainfall in Honduras and Nicaragua may decrease the spread of pest and disease. However, these are complex issues which still require further study. |
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Climatol Weather Forecasting |
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English |
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2332-2594 |
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$loc['no'] |
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COAPS @ user @ |
Serial |
964 |
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Author |
Krishnamurti, T. N.; Karmakar, Nirupam; Misra, Vasubandhu; Nag, Bappaditya; Sahu, Dipak; Dubey, Sarvesh; Haddad, Ziad |
Title |
Association between upper level diffluence in the Tropical Easterly Jet and the formation of the strongest Atlantic hurricanes in recent years |
Type |
$loc['typeJournal Article'] |
Year |
2018 |
Publication |
Proceedings of SPIE |
Abbreviated Journal |
SPIE |
Volume |
10782 |
Issue |
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Pages |
10 |
Keywords |
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Abstract |
In this paper we report the evidence of the potential role of diffluence in the 200hPa wind field off the coast of West Africa in the formation of a significant number of Category 4 and Category 5 hurricanes in the recent decade. It is shown that more than 80% cases of hurricanes at Category 4 and above is preceded by upper level diffluence in the Tropical Easterly Jet (TEJ) by 0{5 days. This TEJ is the outflow from the southern flank of the Tibetan anticyclone from the Asian monsoon region. |
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$loc['no'] |
Call Number |
COAPS @ rl18 @ |
Serial |
1000 |
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Author |
Kumar, V.; Jana, S.; Bhardwaj, A.; Deepa, R.; Sahu, S.K.; Pradhan, P.K.; Sirdas, S.A. |
Title |
Greenhouse Gas Emission, Rainfall and Crop Production Over North-Western India |
Type |
$loc['typeJournal Article'] |
Year |
2018 |
Publication |
The Open Ecology Journal |
Abbreviated Journal |
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Volume |
11 |
Issue |
1 |
Pages |
47-61 |
Keywords |
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Abstract |
Background: This study is based on datasets acquired from multi sources e.g. rain-gauges, satellite, reanalysis and coupled model for the region of Northwestern India. The influence of rainfall on crop production is obvious and direct. With the climate change and global warming, greenhouse gases are also showing an adverse impact on crop production. Greenhouse gases (e.g. CO2, NO2 and CH4) have shown an increasing trend over Northwestern Indian region. In recent years, rainfall has also shown an increasing trend over Northwestern India, while the production of rice and maize are reducing over the region. From eight selected sites, over Northwestern India, where rice and maize productions have reduced by 40%, with an increase in CO2, NO2 and CH4 gas emission by 5% from 1998 to 2011. Results: The correlation from one year to another between rainfall, gas emission and crop production was not very robust throughout the study period, but seemed to be stronger for some years than others. Conclusion: Such trends and crop yield are attributed to rainfall, greenhouse gas emissions and to the climate variability. |
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1874-2130 |
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$loc['no'] |
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COAPS @ user @ |
Serial |
1024 |
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Author |
Guerra, L.A.A.; Paiva, A.M.; Chassignet, E.P. |
Title |
On the translation of Agulhas rings to the western South Atlantic Ocean |
Type |
$loc['typeJournal Article'] |
Year |
2018 |
Publication |
Deep Sea Research Part I: Oceanographic Research Papers |
Abbreviated Journal |
Deep Sea Research Part I: Oceanographic Research Papers |
Volume |
139 |
Issue |
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Pages |
104-113 |
Keywords |
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Abstract |
The shedding of Agulhas rings is the primary process connecting the Indian and Atlantic oceans. The rings transport warm and salty waters that feed the surface limb of the Atlantic Meridional Overturning Circulation. Early studies suggest that Agulhas rings decay and diffuse their contents within the South Atlantic subtropical gyre. In this paper, we update the ring census using an automated algorithm to detect and track eddies over more than 23 years of satellite altimetry data (1993-2016) and calculate their main characteristics. While 140 rings spawned from the Agulhas Retroflection, their following splitting and merging resulted in 74 long-lived rings that crossed the Walvis Ridge and translated towards the west. Eventually, three rings reached the western boundary. For one of them, we use in situ measurements to document its interaction with the Brazil Current and two cyclonic eddies, which resulted in a current velocity increase by three times. Although already hypothesized, this interaction had not been demonstrated with in situ evidence until now. |
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0967-0637 |
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$loc['no'] |
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COAPS @ user @ |
Serial |
994 |
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