MODIS and Vector-Borne Diseases

EarthzineArticles, EO for Health, Original, Sections

Remote sensing via satellites enables us to survey the spatial-temporal patterns of vector-borne diseases in both near and distant places. In this article, MODIS imaging time series, in particular, are explored as an application to bolster surveillance and vector control programs.

Analyzing the Resilience of Mediterranean Forest Systems to Wildfire Using Satellite Imagery

EarthzineArticles, Disaster Management Theme, Earth Observation, Ecosystems Theme, Original, Sections, Themed Articles

Map of portugal showing burned areas

Cropped image of a mixed forest in PortugalIn Portugal, the fire season of 2003 was the worst on record. Satellite imagery was used to study the post-fire vegetation response. The results contribute to our understanding of the impact of management strategies and can ultimately improve allocation of firefighting resources.

Plant Hunt: Mapping and Tracking the Spread of Invasive Lonicera species

EarthzineDEVELOP Fall 2014 VPS, DEVELOP Virtual Poster Session, Original

Project Team: Cumberland Ecological Forecasting Team Team Location: NASA Marshall Space Flight Center, Huntsville, Alabama Authors: Michael Logsdon Brandie Stringer Daryl Ann Winstead Mentors/Advisors: Dr. Jeffrey Luvall (NASA Global Hydrology and Climatology Center) Abstract: Invasive terrestrial plant groups, such as Asiatic bush honeysuckle, are capable of altering a habitat or ecosystem to such an extent that the inherent functions of … Read More

Defoliation Across the Nation: Using VIIRS Data to Monitor Forest Health

EarthzineDEVELOP Fall 2014 VPS, DEVELOP Virtual Poster Session, Original

Project Team: U.S. Disasters Team Team Location: NASA Stennis Space Center, Hancock County, Mississippi Authors: Ross Reahard Alahna Moore Caitlin Ruby Eric Mack Heather Nicholson Mentors/Advisors: Joe Spruce (NASA Stennis Space Center, Science Advisor) James Smoot (NASA Stennis Space Center, Science Advisor) Past/Other Contributors: Jamie Thompson (DEVELOP) Heather Nicholson (DEVELOP) Tim Sutherland (DEVELOP) Alyssa Pourmonir (DEVELOP) Brittany Howell (DEVELOP) Abstract: … Read More

Giovanni Workshop Lets Earth Scientists Share Global Earth Science Data

EarthzineArticles, Earth Observation, Original, Sections

A slide from Suhung Shen‰Ûªs presentation, ‰ÛÏExploring land processes and climate variations through Giovanni,‰Û showing Giovanni-generated rain rate anomaly data and normalized difference vegetation index (NDVI) anomaly data for central Texas, plotted with Microsoft Excel.

A slide from Tracy van Holt's presentation, ‰ÛÏFisher success and adaptation to plantation systems in Chile,‰Û shows higher phytoplankton chlorophyll concentrations offshore of plantation drainage outlets.The NASA Giovanni system allows researchers to easily find, and rapidly visualize and analyze, a wide variety of Earth observation data. Many scientists around the world have discovered and used the system. An online workshop (named in honor of Dr. Gregory G. Leptoukh, who led the development of the system for several years) was convened to share Giovanni’s contributions to recently-published research in many different disciplines of Earth science.

Building a Global Agricultural Monitoring System of Systems: An Overview of the GEO Agriculture Monitoring Task

EarthzineAgriculture, Articles, Earth Observation, Original, Sections

Image of the GEOGlobal Agricultural Monitoring Commounity of Practice logoThe risk of food supply disruptions will continue to grow as our agricultural systems and the land that sustains them respond to the pressures of climate change, energy and water needs and population increases. GEO has a critical role to play, working with its partner organizations to coordinate and secure the necessary global observations for agricultural monitoring. This paper describes recent developments in the GEO Agricultural Monitoring Task (Ag 07-03a)