Earth Interactions: Recent submissions
Now showing items 221-240 of 424
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Multitemporal Analysis of Degraded Forests in the Southern Brazilian Amazon
(American Meteorological Society, 2005)In this study, statistical multitemporal analysis was applied to evaluate the capability of reflectance, vegetation indices [normalized difference vegetation index (NDVI) and soil adjusted vegetation index (SAVI)], normalized ... -
Ecosystem Structure throughout the Brazilian Amazon from Landsat Observations and Automated Spectral Unmixing
(American Meteorological Society, 2005)The Brazilian Amazon forest and cerrado savanna encompasses a region of enormous ecological, climatic, and land-use variation. Satellite remote sensing is the only tractable means to measure the biophysical attributes of ... -
Characterizing Vegetation Fire Dynamics in Brazil through Multisatellite Data: Common Trends and Practical Issues
(American Meteorological Society, 2005)Correctly characterizing the frequency and distribution of fire occurrence is essential for understanding the environmental impacts of biomass burning. Satellite fire detection is analyzed from two sensors?the Advanced ... -
Investigation of Soil Erosion from Bare Steep Slopes of the Humid Tropic Philippines
(American Meteorological Society, 2005)At the Visayas State College of Agriculture (ViSCA) on the island of Leyte in the Philippines, hydrologic and soil-loss measurements were recorded for 32 erosion events over 3 yr on three 12-m-long bare soil plots with ... -
The Sensitivity of Diel CO2 and H2O Vapor Exchange of a Tropical Transitional Forest to Seasonal Variation in Meteorology and Water Availability
(American Meteorological Society, 2005)Measurements of ecosystem gas exchange, meteorology, and hydrology (rainfall and soil moisture) were used to assess the seasonal patterns of, and controls on, average diel (24 h) net ecosystem CO2 exchange (NEE), ... -
Detection of Mesoscale Seasonal and Interannual Variation in the Vegetation of the Amazon Basin
(American Meteorological Society, 2005)In the Amazon basin, seasonal and interannual spectral changes measured by satellites result from anthropogenic disturbance and from the interaction between climate variation and the surface cover. Measurements of spectral ... -
Global Biomass Variation and Its Geodynamic Effects: 1982–98
(American Meteorological Society, 2005)Redistribution of mass near Earth?s surface alters its rotation, gravity field, and geocenter location. Advanced techniques for measuring these geodetic variations now exist, but the ability to attribute the observed modes ... -
Soil–Atmosphere Exchange of Nitrous Oxide, Nitric Oxide, Methane, and Carbon Dioxide in Logged and Undisturbed Forest in the Tapajos National Forest, Brazil
(American Meteorological Society, 2005)Selective logging is an extensive land use in the Brazilian Amazon region. The soil?atmosphere fluxes of nitrous oxide (N2O), nitric oxide (NO), methane (CH4), and carbon dioxide (CO2) are studied on two soil types (clay ... -
Variability in Terrestrial Carbon Sinks over Two Decades. Part III: South America, Africa, and Asia
(American Meteorological Society, 2005)Seventeen years (1982?98) of net carbon flux predictions for Southern Hemisphere continents have been analyzed, based on a simulation model using satellite observations of monthly vegetation cover. The NASA Carnegie Ames ... -
Synthetic Aperture Radar (L band) and Optical Vegetation Indices for Discriminating the Brazilian Savanna Physiognomies: A Comparative Analysis
(American Meteorological Society, 2005)The all-weather capability, signal independence to the solar illumination angle, and response to 3D vegetation structures are the highlights of active radar systems for natural vegetation mapping and monitoring. However, ... -
Trends and Variability in U.S. Corn Yields Over the Twentieth Century
(American Meteorological Society, 2005)The United States is currently responsible for 40%?45% of the world?s corn supply and 70% of total global exports [the U.S. Department of Agriculture?National Agricultural Statistics Service (USDA?NASS)]. Therefore, analyses ... -
CORRIGENDUM
(American Meteorological Society, 2005) -
Using Clustered Climate Regimes to Analyze and Compare Predictions from Fully Coupled General Circulation Models
(American Meteorological Society, 2005)Changes in Earth?s climate in response to atmospheric greenhouse gas buildup impact the health of terrestrial ecosystems and the hydrologic cycle. The environmental conditions influential to plant and animal life are often ... -
Objective Identification of Tornado Seasons and Ideal Spatial Smoothing Radii
(American Meteorological Society, 2013)he fundamental purpose of this research is to highlight the spatial seasonality of tornado risk. This requires the use of objective methods to determine the appropriate spatial extent of the bandwidth used to calculate ... -
An Empirical Analysis on the Relationship between Tropical Cyclone Size and Storm Surge Heights along the U.S. Gulf Coast
(American Meteorological Society, 2013)n the past decade, several large tropical cyclones have generated catastrophic storm surges along the U.S. Gulf and Atlantic Coasts. These storms include Hurricanes Katrina, Ike, Isaac, and Sandy. This study uses empirical ... -
The Maritime Influence on Diurnal Temperature Range in the Chesapeake Bay Area
(American Meteorological Society, 2013)his study analyzes the influence of the Atlantic Ocean and Chesapeake Bay on the diurnal temperature range (DTR) reported by nearby weather stations. Coastal locations reported the smallest DTRs and DTR fluctuations, and ... -
Variability Common to First Leaf Dates and Snowpack in the Western Conterminous United States
(American Meteorological Society, 2013)ingular value decomposition is used to identify the common variability in first leaf dates (FLDs) and 1 April snow water equivalent (SWE) for the western United States during the period 1900?2012. Results indicate two modes ... -
On the Relationship of Soil Moisture and Extreme Temperatures in East China
(American Meteorological Society, 2013)oil moisture conditions affect energy partitioning between sensible and latent heat fluxes, resulting in a change in surface temperatures. In this study, the relationships between antecedent soil moisture conditions [as ... -
Climate Forecasts for Corn Producer Decision Making
(American Meteorological Society, 2013)orn is the most widely grown crop in the Americas, with annual production in the United States of approximately 332 million metric tons. Improved climate forecasts, together with climate-related decision tools for corn ... -
Land Surface Heterogeneity Signature in Tornado Climatology? An Illustrative Analysis over Indiana, 1950–2012
(American Meteorological Society, 2013)and surface heterogeneity affects mesoscale interactions, including the evolution of severe convection. However, its contribution to tornadogenesis is not well known. Indiana is selected as an example to present an assessment ...