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Geography & Atmospheric Science Scholarly Works: Recent submissions
Now showing items 181-200 of 202
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Soil degradation, global warming and climate impacts
(Inter Research, 2001)A water balance model is used to assess the relative impacts of global warming and soil degradation scenarios on water resources in the future. Results indicate that overall global warming will have a more widespread and ... -
Estimated impacts of soil degradation on the African water balance and climate
(Inter Research, 1998)This study uses a well-established water balance methodology, the Thornthwaite-Mather approach, to evaluate the effects of soil water holding capacity assumptions on estimates of African evapotranspiration rates, moisture ... -
Predicted change in global secondary organic aerosol concentrations in response to future climate, emissions, and land use change
(American Geophysical Union, 2008-03)The sensitivity of secondary organic aerosol (SOA) concentration to changes in climate and emissions is investigated using a coupled global atmosphere-land model driven by the year 2100 IPCC A1B scenario predictions. The ... -
Research priorities in land use and land-cover change for the Earth system and integrated assessment modelling
(Royal Meteorological Society, 2010)This special issue has highlighted recent and innovative methods and results that integrate observations and modelling analyses of regional to global aspect of biophysical and biogeochemical interactions of land-cover ... -
Global trends in visibility: implications for dust sources
(Published by Copernicus Publications on behalf of the European Geosciences Union, 2007-06)There is a large uncertainty in the relative roles of human land use, climate change and carbon dioxide fertilization in changing desert dust source strength over the past 100 years, and the overall sign of human impacts ... -
Fire dynamics during the 20th century simulated by the Community Land Model
(Published by Copernicus Publications on behalf of the European Geosciences Union, 2010)Fire is an integral Earth System process that interacts with climate in multiple ways. Here we assessed the parametrization of fires in the Community Land Model (CLM-CN) and improved the ability of the model to reproduce ... -
Effects of white roofs on urban temperature in a global climate model
(American Geophysical Union, 2010-02)Increasing the albedo of urban surfaces has received attention as a strategy to mitigate urban heat islands. Here, the effects of globally installing white roofs are assessed using an urban canyon model coupled to a global ... -
Carbon-nitrogen interactions regulate climate-carbon cycle feedbacks: results from an atmosphere-ocean general circulation model
(Published by Copernicus Publications on behalf of the European Geosciences Union, 2009)Abstract. Inclusion of fundamental ecological interactions between carbon and nitrogen cycles in the land component of an atmosphere-ocean general circulation model (AOGCM) leads to decreased carbon uptake associated ... -
Indigenous Knowledges Driving Technological Innovation
(UCLA Asian American Studies Center Press, 2011-09)This policy brief explores the use and expands the conversation on the ability of geospatial technologies to represent Indigenous cultural knowledge. Indigenous peoples’ use of geospatial technologies has already proven ... -
Gender Issues Among Academic AMS Members: Comparisons with the 1993 Membership Survey
(American Meteorological Society, 2009-08) -
Kitchen Table Discourse: Negotiating the “Tricky Ground” of Indigenous Research
(University of California, 2008) -
Length Scale Analysis of Surface Energy Fluxes Derived from Remote Sensing
(American Meteorological Society, 2003)Wavelet multiresolution analysis was used to examine the variation in dominant length scales determined from remotely sensed airborne- and satellite-derived surface energy flux data. The wavelet cospectra are computed between ... -
Seasonal trends in air temperature and precipitation in IPCC AR4 GCM output for Kansas, USA: evaluation and implications
(Royal Meteorological Society, 2009-01-08)Understanding the impacts of future climate change in Kansas is important for agricultural and other socioeconomic sectors in the region. To quantify these impacts, seasonal trends in air temperature and precipitation ... -
Quantifying the thermodynamic entropy budget of the land surface: is this useful?
(European Geosciences Union, 2011-06-20)As a system is moved away from a state of thermodynamic equilibrium, spatial and temporal heterogeneity is induced. A possible methodology to assess these impacts is to examine the thermodynamic entropy budget and ... -
Energy Balance Partitioning and Net Radiation Controls on Soil Moisture – Precipitation Feedbacks
(American Meteorological Society, 2009-01-14)A series of model runs using the University of Oklahoma’s Advanced Regional Prediction System (ARPS) were conducted to investigate the relative impacts of energy balance partitioning and net radiation on soil moisture ... -
Characterizing the multi–scale spatial structure of remotely sensed evapotranspiration with information theory
(European Geosciences Union, 2011-08-22)A more thorough understanding of the multi-scale spatial structure of land surface heterogeneity will enhance understanding of the relationships and feedbacks between land surface conditions, mass and energy exchanges ... -
Coupling Terrestrial and Atmospheric Water Dynamics to Improve Prediction in a Changing Environment
(American Meteorological Society, 2008-09)Fluxes across the land surface directly influence predictions of ecological processes, atmospheric dynamics, and terrestrial hydrology. However, many simplifications are made in numerical models when considering ... -
Surface heterogeneity impacts on boundary layer dynamics via energy balance partitioning
(European Geosciences Union, 2011-04-11)The role of land-atmosphere interactions under heterogeneous surface conditions is investigated in order to identify mechanisms responsible for altering surface heat and moisture fluxes. Twelve coupled land surface – ... -
Parameterization of Urban Characteristics for Global Climate Modeling
(2011-10-31)The data presented here are part of a global dataset developed specifically for use in climate models to simulate urban climates for specific regions of the globe. Article abstract: To help understand potential effects of ... -
Mapping Indigenous Depth of Place
(UCLA American Indian Studies Center / University of California Press, 2008-11)