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2012

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Articles 91 - 112 of 112

Full-Text Articles in Climate

Climate Change Adaptation In Mauritius: Considering The Role Of Institutions, Matthew Gray, Bhanooduth Lalljee Jan 2012

Climate Change Adaptation In Mauritius: Considering The Role Of Institutions, Matthew Gray, Bhanooduth Lalljee

East Africa

Adaptation to climate change is critical in countries like Mauritius which, despite contributing a minute percentage to the world’s emissions, is disproportionately vulnerable to their impacts. Rising temperatures are exacerbating the problems of coral reef bleaching, soil and beach erosion, a greater risk of drought and flash floods, intensifying tropical storms, sea level rise and biodiversity impacts. Projections of accelerated warming only increase the urgency for a coordinated framework of adaptive governance in Mauritius. The nature of adaptation needed will require a complex, long-term, and interdisciplinary process of widespread engagement, necessitating effective institutions with shared responsibilities. This paper describes how …


Vice-Présidence En Charge Du Ministère De La Production, De L’Environnement, De L’Energie, De L’Industrie Et De L’Artisanat, Union Des Comores Jan 2012

Vice-Présidence En Charge Du Ministère De La Production, De L’Environnement, De L’Energie, De L’Industrie Et De L’Artisanat, Union Des Comores

East Africa

L’Union des Comores s’étend sur une superficie d’environ 2232 km² répartie inégalement sur quatre îles volcaniques qui sont d’Est à l’Ouest : Mayotte (370 km²), Ndzouani (424 km²), Mwali (290 km²) et Ngazidja (1148 km²). L’archipel est situé à l’entrée Nord du Canal de Mozambique, entre 11°20’ et 13°14’ de latitude Sud et 43°11’ et 45°19’ de longitude Est, entre Madagascar et la côte orientale de l’Afrique. Les îles sont situées à égale distance de l’Afrique Orientale et de Madagascar (300km) et sont distantes entre elles d’environ 30 à 40km. Elles occupent ainsi une position stratégique, au coeur de la …


Where Is The Rain-On-Snow Zone In The West-Central Washington Cascades?: Monte Carlo Simulation Of Large Storms In The Northwest, Matthew John Brunengo Jan 2012

Where Is The Rain-On-Snow Zone In The West-Central Washington Cascades?: Monte Carlo Simulation Of Large Storms In The Northwest, Matthew John Brunengo

Dissertations and Theses

Rain-on-snow (ROS) occurs when warm, wet air moves into latitudes and/or elevations having vulnerable snowpacks, where it can alter water inputs to infiltration, runoff and erosion. The Pacific Northwest is particularly susceptible: winter storms off the Pacific cause locally heavy rain plus snowmelt almost annually, and disastrous flooding and landsliding intermittently. In maritime mountainous terrain, the effects seem more likely and hydrologically important where warm rains and seasonal snowpacks are liable to coincide, in middle elevations. Several questions arise: (1) In the PNW, does ROS affect the long-term frequency and magnitude of water delivery to the ground, versus total precipitation …


Droughtscape, Winter 2012, National Drought Mitigation Center Jan 2012

Droughtscape, Winter 2012, National Drought Mitigation Center

DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)

Drought Planning for Kansas Ranchers Jan. 21

South Hoping La Niña Dryness Stays Away

2011 Brought Record-Breaking Extent of D4

Reported Impacts Ease as Growing Season Ends

Disaster Planning in Nanjing at Hohai U

Ag, Fire and Water Supply Topped 2011 Impacts


Implications Of Decade Time Scale Arctic Plant Community Change On Ecosystem Function, Mark Jason Lara Jan 2012

Implications Of Decade Time Scale Arctic Plant Community Change On Ecosystem Function, Mark Jason Lara

Open Access Theses & Dissertations

Almost half the global soil organic carbon pool is found in northern high latitudes. The majority of this soil carbon is stored in a greenhouse inert state within permafrost. As pronounced warming of high northern latitudes ensues, there is a strong likelihood that this substantial soil organic carbon pool will be mobilized to the atmosphere where it is likely to positively enhance greenhouse warming. Modeling studies suggest this positive feedback could alter future climate states of the Arctic and the globe, and affect how humans may need to adapt to climate change. Accordingly, understanding the patterns and controls and the …


Community Earth System Model: Implementation, Validation, And Applications, William Christian Porter Jan 2012

Community Earth System Model: Implementation, Validation, And Applications, William Christian Porter

Dissertations and Theses

The Community Earth System Model (CESM) is a coupling of five different models which are combined to simulate the dynamic interactions between and within the Earth's atmosphere, ocean, land, land-ice, and sea-ice. In this work, the installation and testing of CESM on Portland State University's Cluster for Climate Change and Aerosol Research (CsAR) is described and documented, and two research applications of the model are performed. First, the improved treatment of cloud microphysics within recent versions of CESM's atmospheric module is applied to an examination of changes in shortwave cloud forcing (SWCF) and results are compared to output from older …


Climate Change Effects And Water Vulnerability In The Molalla Pudding River Basin, Oregon, Usa, Susan Amelia Wherry Jan 2012

Climate Change Effects And Water Vulnerability In The Molalla Pudding River Basin, Oregon, Usa, Susan Amelia Wherry

Dissertations and Theses

Water management plans are typically developed using historical data records and historical return periods for extreme events, such as floods or droughts. Since these analyses of return periods typically assume a certain degree of stationarity (constant mean, standard deviation, distribution) in hydrologic variables, the potential future impacts of climate change are excluded. In developing water management plans, predicted changes to climate variables should be considered to evaluate the degree of non-stationarity that may exist in the future. In this way, regions most sensitive to climate change can be identified and managed appropriately. This study performed such a task by using …


Late Pleistocene And Holocene Aged Glacial And Climatic Reconstructions In The Goat Rocks Wilderness, Washington, United States, Joshua Andrews Heard Jan 2012

Late Pleistocene And Holocene Aged Glacial And Climatic Reconstructions In The Goat Rocks Wilderness, Washington, United States, Joshua Andrews Heard

Dissertations and Theses

Eight glaciers, covering an area of 1.63 km2, reside on the northern and northeastern slopes of the Goat Rocks tallest peaks in the Cascades of central Washington. At least three glacial stands occurred downstream from these glaciers. Closest to modern glacier termini are Little Ice Age (LIA) moraines that were deposited between 1870 and 1899 AD, according to the lichenometric analysis. They are characterized by sharp, minimally eroded crests, little to no soil cover, and minimal vegetation cover. Glacier reconstructions indicate that LIA glaciers covered 8.29 km2, 76% more area than modern ice coverage. The average LIA equilibrium line altitude …


The Association Of Summer Temperatures With Hospital Admissions For Renal Diseases In New York State : A Case-Crossover Study, Barbara A. Fletcher Jan 2012

The Association Of Summer Temperatures With Hospital Admissions For Renal Diseases In New York State : A Case-Crossover Study, Barbara A. Fletcher

Legacy Theses & Dissertations (2009 - 2024)

This study assessed the association between high temperatures and increased odds of hospitalization for renal diseases which, to date, has been examined in only a small number of studies. A case-crossover design was used to study 147,885 hospital admissions with renal diagnoses during July and August, 1991-2004 in New York State. Regional temperature, humidity and barometric pressure data from automated monitors were used as exposure indicators. Using time-stratified referent selection and conditional logistic regression analysis, an overall 9% increase in odds of hospitalization for acute renal failure per 5°F (2.78°C) was found for mean temperature at a one day lag …


Assessing The Reproducibility Of Coral Oxygen And Carbon Isotope Time Series From Fiji And Tonga And Their Application To The Reconstruction Of South Pacific Convergence Zone Movements Since The Mid-1800s, Emilie Pauline Dassie Jan 2012

Assessing The Reproducibility Of Coral Oxygen And Carbon Isotope Time Series From Fiji And Tonga And Their Application To The Reconstruction Of South Pacific Convergence Zone Movements Since The Mid-1800s, Emilie Pauline Dassie

Legacy Theses & Dissertations (2009 - 2024)

A major feature affecting the hydrology of the southern hemisphere is the South Pacific Convergence Zone (SPCZ); a band of high rainfall extending southeastward from the Western Pacific Warm Pool (WPWP). It is a key source of atmospheric water vapor and latent heating. While it is clear that the SPCZ plays a fundamental role in Earth's climate, little is known about the patterns and mechanisms responsible for interannual to century-scale changes in its position and how it may respond to global climate change.


The Global Drought Monitor Portal: The Foundation For A Global Drought Information System, Richard R. Heim Jr., Michael J. Brewer Jan 2012

The Global Drought Monitor Portal: The Foundation For A Global Drought Information System, Richard R. Heim Jr., Michael J. Brewer

United States Department of Commerce: Staff Publications

The international scientific community has long recognized the need for coordinated drought monitoring and response, but many factors have prevented progress in the development of a Global Drought Early Warning System (GDEWS): some of which involve administrative issues (coordinated international action and policy) while others involve scientific, technological, and logistical issues. The creation of the National Integrated Drought Information System (NIDIS) Portal within the United States provided an opportunity to take the first steps toward building the informational foundation for a GDEWS: that is, a Global Drought Information System (GDIS). At a series of workshops sponsored by the World Meteorological …


Climate Change Adaptation In East Africa, Usaid Jan 2012

Climate Change Adaptation In East Africa, Usaid

East Africa

The East Africa region is comprised of the countries of Burundi, Djibouti, Eritrea, Ethiopia, Kenya, Rwanda, Somalia, South Sudan, Tanzania, and Uganda. The countries of the region are already subject to climate variability and extremes including droughts and floods, which in some cases have had severe economic and social implications. Climate models predict that the region is likely to experience both near-term alterations in climate such as warmer temperatures, changes in the frequency and intensity of extreme events, and decreased precipitation, as well as long-term shifts such as sea level rise. Projected climate change impacts are likely to add to …


Improving Sea Level Reconstructions Using Non-Sea Level Measurements, B. D. Hamlington, R. R. Leben, K.-Y. Kim Jan 2012

Improving Sea Level Reconstructions Using Non-Sea Level Measurements, B. D. Hamlington, R. R. Leben, K.-Y. Kim

CCPO Publications

We present a new method for reconstructing sea level involving cyclostationary empirical orthogonal functions (CSEOFs). While we show results from a CSEOF reconstruction using basis functions computed from satellite altimetry and subsequently fit to tide gauge data, our focus is on how other ocean observations such as sea surface temperature can be leveraged to create an improved reconstructed sea level data set spanning the time period from 1900 to present. Basis functions are computed using satellite measurements of sea surface temperature, and using a simple regression technique, these basis functions are transformed to represent a similar temporal evolution to corresponding …


Impact Of Vegetation On Land-Atmosphere Coupling Strength And Its Implication For Desertification Mitigation Over East Asia, Boksoon Myoung, Yong-Sang Choi, Suk-Jin Choi, Seon Ki Park Jan 2012

Impact Of Vegetation On Land-Atmosphere Coupling Strength And Its Implication For Desertification Mitigation Over East Asia, Boksoon Myoung, Yong-Sang Choi, Suk-Jin Choi, Seon Ki Park

Mathematics, Physics, and Computer Science Faculty Articles and Research

Desertification of the East Asian drylands and the consequent dust transport have been serious concerns for adjacent Asian countries as well as the western United States. Tree planting has been considered one applicable strategy to mitigate the desertification. However, the desired effect of the tree planting would not be brought to fruition unless the newly planted trees change the coupling characteristics between the land and the atmosphere. Based on this perception, we attempt to clarify the effects of vegetation on the coupling strength between the atmosphere and land surface, and we suggest the most efficient areas of tree planting for …


Standardized Precipitation Index: User Guide, Mark Svoboda, Michael Hayes, Deborah Wood Jan 2012

Standardized Precipitation Index: User Guide, Mark Svoboda, Michael Hayes, Deborah Wood

National Drought Mitigation Center: Faculty Publications

Over the years, there has been much discussion on what drought indices should be used in a particular climate and for what application. Many drought definitions and indices have been developed and attempts have been made to provide some guidance on this issue. With this in mind, the Interregional Workshop on Indices and Early Warning Systems for Drought was organized and held at the University of Nebraska-Lincoln, United States of America, from 8 to 11 December 2009. It was jointly sponsored by the School of Natural Resources (SNR) of the University of Nebraska, the United States National Drought Mitigation Center …


The Effects Of Climate On The Growth Of Winter Wheat And Spring Barley In An Irish Context, Adrian Kennedy Jan 2012

The Effects Of Climate On The Growth Of Winter Wheat And Spring Barley In An Irish Context, Adrian Kennedy

Theses

The climate of earth is always changing due to natural events, however it is thought that the rapid warming period currently taking place is primarily due human activity to (environmental protection agency 2012). Climate change is altering the environment and this will have consequences for agriculture (Teagasc publications 2012). In this study we examine the relationship between weather and the yield of winter wheat and spring barley in an Irish context using data gathered from 2004-2010 at the Teagasc Oak Park research centre in Carlow. The data was analysed using a mixed effect model to test which if any weather …


Mangroves, Mudbanks And Seawalls: Political Ecology Of Adaptation To Sea Level Rise In Suriname, Ravic Nijbroek Jan 2012

Mangroves, Mudbanks And Seawalls: Political Ecology Of Adaptation To Sea Level Rise In Suriname, Ravic Nijbroek

USF Tampa Graduate Theses and Dissertations

This study seeks to understand how global discourses of sea level rise (SLR) and mangrove ecology influence national climate change adaptation policy to reduce coastal vulnerability in Suriname. A majority of the Surinamese population lives along the low elevation coastal zone and is highly exposed to projected SLR. Failure by the international community to reach agreement on climate change mitigation means that vulnerable coastal communities must adapt. The Suriname coast is predominantly shaped by mudbanks and mangroves which together provide protection against coastal erosion and trap sediments resulting in coastal accretion. Knowledge claims of mangrove ecology and utility in SLR …


Lsuhsc Facilities Biweekly Updates: January 2012, Lsuhsc Property And Facilities Management Jan 2012

Lsuhsc Facilities Biweekly Updates: January 2012, Lsuhsc Property And Facilities Management

LSUHSC Facilities Biweekly Updates: 2012

LSUHSC Facilities Biweekly Update from January 13, 2012.

This update describes damage and a timeline of repairs at the LSU Health Sciences Center - New Orleans campus due to Hurricane Katrina which made landfall August 29, 2005.


Lsuhsc Facilities Daily Update: January 2012, Lsuhsc Property And Facilities Management Jan 2012

Lsuhsc Facilities Daily Update: January 2012, Lsuhsc Property And Facilities Management

LSUHSC Facilities Daily Updates: 2012

LSUHSC Facilities Daily Updates from January 2012.

These updates describe damage and a timeline of repairs at the LSU Health Sciences Center - New Orleans campus due to Hurricane Katrina which made landfall August 29, 2005.


An Introduction To Ecology Of Infectious Diseases - Oysters And Estuaries, Eileen E. Hofmann, Susan E. Ford Jan 2012

An Introduction To Ecology Of Infectious Diseases - Oysters And Estuaries, Eileen E. Hofmann, Susan E. Ford

OES Faculty Publications

Infectious diseases are recognized as an important factor regulating marine ecosystems (Harvell et al., 1999, 2002, 2004; Porter et al., 2001; McCallum et al., 2004; Ward and Lafferty, 2004; Stewart et al., 2008; Bienfang et al., 2011). Many of the organisms affected by marine diseases have important ecological roles in estuarine and coastal environments and some are also commercially important. Outbreaks of infectious diseases in these environments, referred to as epizootics, can produce significant population declines and extinctions, both of which threaten biodiversity, food web interactions, and ecosystem productivity (Harvell et al., 2002, 2004).


Adaptation Of Sea Level Rise In Nile Delta Due To Climate Change, Ayman F. Batisha Jan 2012

Adaptation Of Sea Level Rise In Nile Delta Due To Climate Change, Ayman F. Batisha

Egypt & Libya

Nile Delta is vulnerable due to the impact of climate change and related sea level rise. Due to low elevation in the Nile delta region, Egypt is considered one of the top five countries expected to be mostly impacted with a 1 m sea level rise resulting from global warming. Egypt is ranked as the fifth in the world concerning the impact on the total urban areas, Egypt’s GDP would be significantly impacted, and Egypt’s natural resources such as coastal zone, water resources, water quality, agricultural land, livestock and fisheries maybe subjected to vulnerability. Also, Egypt may face environmental crises …


Climate Change And Water In The Arab Region Mapping Of Knowledge And Institutions, Guy Jobbins Jan 2012

Climate Change And Water In The Arab Region Mapping Of Knowledge And Institutions, Guy Jobbins

Egypt & Libya

MENA is the most water scarce region in the world, with 16 countries experiencing water scarcity (< 1000 m3 per capita per year) and 12 experiencing absolute water scarcity (< 500 m3 per capita per year). With rapidly growing and urbanising populations, water scarcity is increasing across the region on an annual basis.  This situation is already and will be further exacerbated by the impacts of climate change, with consensus opinion indicating mean temperature increases of 4C and mean precipitation reductions reaching -30% across the region by 2100. In addition to changes in means, daily, seasonal, and interannual variability in precipitation is also projected to increase.  The physical impacts of climate change are likely to include decreased river flows, increased water scarcity in rainfed areas, decreased recharge of groundwater, increased evapotranspiration, coastal change due to inundation and saltwater intrusion, increased frequency of heat-waves, and the possibility of increased flooding.  In Egypt key vulnerabilities are related to future Nile flows, the impacts of sea level rise in the Delta coast, and tensions between plans for expanding agriculture and needs to reduce agricultural water consumption. In Jordan key vulnerabilities relate to reduced Jordan river flows, disproportionate water consumption in irrigated agriculture, impacts on rainfed agriculture, and limited opportunity for water savings efficiencies. The least water scarce country surveyed, Lebanon has vulnerabilities related to the human geography, infrastructural, and institutional legacies of the civil war, with poor water networks, dysfunctional governance systems, and an absence of data. Developing climate projections and assessing physical impacts in MENA is hampered by deficits in long-term data series, the complex interactions between climate, geography and hydrogeology, and the sensitivity of precipitation changes in arid areas. There is a lack of capacity for and rigorous studies of climate vulnerability assessments across the region, particularly in terms of social vulnerability, gender and the impacts of climate change on human health. There is a lack of evidence and experience on adaptation to climate change in the region. There are also capacity gaps on community based adaptation, and adaptation planning, policy, and economics. There are growing national activities in planned adaptation by international donors and state organisations, climate research by academic and government institutions, and climate activism by NGOs. At the regional level activity is less well developed, although dominated by UNDP and the World Bank. Several networks exist on related issues that could be exploited for mainstreaming adaptation in the water sector. There are needs for individual, institutional and regional capacity building and knowledge provision which ACCWAM is well positioned to fulfil, although careful positioning is needed to avoid duplication of efforts. The development of National Communications, National Adaptation Strategies, and updating National Water Strategies appear to the key national policy processes for ACCWAM to engage in.