A5090396102- Climate change impacts on agriculture
- Remote Sensing in Agriculture
- Agricultural risk and resilience
- Atmospheric and Environmental Gas Dynamics
- Food Security and Health in Diverse Populations
- Climate variability and models
- Land Use and Ecosystem Services
- Precipitation Measurement and Analysis
- Child Nutrition and Water Access
- Cryospheric studies and observations
- Astro and Planetary Science
- Remote Sensing and Land Use
- Soil Moisture and Remote Sensing
- Remote Sensing and LiDAR Applications
- Plant Water Relations and Carbon Dynamics
- Hydrology and Drought Analysis
- Energy and Environment Impacts
- Atmospheric chemistry and aerosols
- Agriculture Sustainability and Environmental Impact
- Agricultural Innovations and Practices
- Urban Agriculture and Sustainability
- Market Dynamics and Volatility
- Atmospheric aerosols and clouds
- Climate change and permafrost
- Flood Risk Assessment and Management
University of Maryland, College Park
2015-2024
Discovery Institute
2024
Sanford Burnham Prebys Medical Discovery Institute
2024
University of Maryland, Baltimore
2023
Center for Grain and Animal Health Research
2022
University of Greenwich
2021
Natural Resources Institute
2021
Tufts University
2020
Goddard Space Flight Center
2007-2016
Sigma Space (United States)
2013-2015
Daily daytime Advanced Very High Resolution Radiometer (AVHRR) 4‐km global area coverage data have been processed to produce a Normalized Difference Vegetation Index (NDVI) 8‐km equal‐area dataset from July 1981 through December 2004 for all continents except Antarctica. New features of this include bimonthly composites, NOAA‐9 descending node August 1994 January 1995, volcanic stratospheric aerosol correction 1982–1984 and 1991–1993, NDVI normalization using empirical mode...
Changes in vegetative growing seasons are dominant indicators of the dynamic response ecosystems to climate change. Therefore, knowledge over past decades is essential predict ecosystem changes. In this study, long-term changes temperate vegetation Northern Hemisphere were examined by analyzing satellite-measured normalized difference index and reanalysis temperature during 1982–2008. Results showed that length season (LOS) increased analysis period; however, role at start (SOS) end (EOS)...
Since 1980, the number of undernourished people in eastern and southern Africa has more than doubled. Rural development stalled rural poverty expanded during 1990s. Population growth remains very high, declining per-capita agricultural capacity retards progress toward Millennium Development goals. Analyses situ station data satellite observations precipitation have identified another problematic trend: main growing-season rainfall receipts diminished by approximately 15% food-insecure...
This paper evaluates the consistency of Normalized Difference Vegetation Index (NDVI) records derived from Advanced Very High Resolution Radiometer (AVHRR), SPOT-Vegetation, SeaWiFS, Moderate Imaging Spectroradiometer, and Landsat ETM+. We used independently NDVI atmospherically corrected ETM+ data at 13 Earth Observation System Land Validation core sites, eight locations drought, globally aggregated one-degree four coarse resolution sensors to assess agreement. The objectives this are to:...
Despite accelerating globalization, most people still eat food that is grown locally. Developing countries with weak purchasing power tend to import as little possible from global markets, suffering consumption deficits during times of high prices or production declines. Local agricultural production, therefore, critical both security and economic development among the rural poor. The level local in turn, will be determined by amount quality arable land, inputs (fertilizer, seeds,...
The goal of NASA's land long term data record (LTDR) project is to produce a consistent set from the AVHRR and MODIS instruments for climate studies. will create daily surface reflectance normalized difference vegetation index (NDVI) products at resolution 0.05deg, which identical modeling grid (CMG) used EOS Terra Aqua. Higher order such as burned area, temperature, albedo, bidirectional distribution function (BRDF) correction, leaf area (LAI), fraction photosynthetically active radiation...
Abstract Objective : Obese children are stigmatized in same‐sex relationships. This study examines whether, adulthood, obesity stigma exists adults when they asked to rank order preferences for a sexual partner. Research Methods and Procedures Following the methods of Richardson et al. (Richardson SA, Goodman N, Hastorf AH, Dornbusch SM. Cultural uniformity reaction physical disabilities. Am Sociol Rev . 1961;26:241–247) Latner Stunkard (Latner J, AJ, Wilson GT. Age, ethnic gender...
As climate change continues, it is expected to have increasingly adverse impacts on child nutrition outcomes, and these will be moderated by a variety of governmental, economic, infrastructural, environmental factors. To date, attempts map the vulnerability food systems drought focused mapping factors but not incorporated observations historic shocks outcomes. We significantly improve approaches using over 580,000 children from 53 countries examine how precipitation extremes since 1990...
<h3>ABSTRACT</h3> Healthy forests provide human communities with a host of important ecosystem services, including the provision food, clean water, fuel, and natural medicines. Yet globally, about 13 million hectares are lost every year, biggest losses in Africa South America. As biodiversity loss degradation due to deforestation continue at unprecedented rates, concomitant impacts on health remain poorly understood. Here, we use data from 2010 Malawi Demographic Health Survey, linked...
In this study we report the development of a time dependency global dust source and its impact on simulation in Goddard Chemistry Aerosol Radiation Transport (GOCART) model. We determine surface bareness using 8 km normalized difference vegetation index (NDVI) observed from advanced very high resolution radiometer satellite. The results are used to analyze temporal variations 22 regions. One half these regions can be considered permanent where NDVI is always less than 0.15, while other shows...
Food systems are at the center of a brewing storm consisting rapidly changing climate, rising hunger and malnutrition, significant social inequities. At same time, there vast opportunities to ensure that food produce healthy safe in equitable ways promote environmental sustainability, especially if world can come together UN Systems Summit late 2021 make strong binding commitments toward system transformation. The NIH-funded Nutrition Obesity Research Center Harvard Medical School Division...
ADVERTISEMENT RETURN TO ISSUEPREVFeatureNEXTMarkets, Climate Change, and Food Security in West AfricaFood price fluctuations, which will be exacerbated by climate change, make African food security even more tenuous.Molly E. Brown, Beat Hintermann, Nathaniel HigginsView Author Information NASA Goddard Space Flight Center, Greenbelt, Maryland Centre for Energy Policy Economics, ETH, Zurich University of Maryland, College Park, MarylandCite this: Environ. Sci. Technol. 2009, 43, 21,...
Food security exists when people have access to sufficient, safe and nutritious food at all times meet their dietary needs. The natural resource base is one of the many factors affecting security. Its variability decline creates problems for local production. In this study we characterize sub-Saharan Africa vegetation phenology assess trends phenological indicators based on NDVI time series from 1982 2006. We focus cumulated over season (cumNDVI) which a proxy net primary productivity....