You can use this page to browse through all of the individual visualizations that have been cataloged in our digital library. You can also browse them as
Detecting El Niño in Sea Surface Temperature Data
SST anomalies for December 1997 displayed in My World GIS. Red indicates above average temperatures compared to average SST temperatures for December data averaged over the years 1982-1998. This chapter introduces you to normal seasonal sea surface temperature (SST) variation as well as extreme variation, as in the case of El Niño and La Niña events, in the equatorial Pacific Ocean. You will learn how to download seasonal SST data from the Pacific Marine Environmental Laboratory (PMEL), via a THREDDS server, for the years 1982 to 1998. With My World GIS, you will visualize and analyze that data, looking for the tell-tale SST signature of El Niño and La Niña events that occurred during that time period. At the conclusion of the chapter, you will be given the opportunity to analyze a season of your own choosing to determine if an El Niño and La Niña SST pattern emerged in that year's data.
Dryland Rivers Research
This site is intended to stimulate research by providing an information focus and provoking networking between those working on dryland rivers and the sediments they leave behind. Topics covered include processes and products, hydrology, dynamics, architecture of rivers and their floodplains, adjacent and interacting processes, modern and ancient dryland rivers and integration of geomorphology and sedimentology. Users may follow links to dryland river descriptions and myths, hot topics, a discussion forum, images and other useful information.
Weathering and Mineral Evolution
This annotated slide set shows how the introduction of rain water changes the elemental composition of parent material as it is weathered into first immature and then mature soil. The site illustrates and explains the chemical weathering of aluminum, iron, silicon, calcium, magnesium, sodium, and potassium minerals under minimal, moderate, and intensive weathering conditions. Captions also explain in which climates each type of weathering occurs.
Weathering and Clay Evolution
This annotated animation shows how primary minerals lose content at a linear pace. The site illustrates how primary minerals, 2:1 clays, 1:1 clays, and aluminum and iron oxides develop as a function of time.
This annotated animation explains how chemical weathering affects the evolution of parent material from highly resistant primary minerals to both secondary minerals and minerals in solution. It illustrates how, over time, weathering changes both the elemental and the mineral composition of soil.
Dynamics of Steady-State Drainage Basins: An Experimental Approach
This site contains animations and data of erosion on a small scale and numerical landscape erosion models. Erosion on small scale models were developed in an erosion facility that allows a miniature landscape to erode through several relief distances at constant base level fall and rainfall rates. Numerical landscape erosion animations are modified from published models with changes to numerical lattice boundaries such as stream curvatures, hillslope failure and directional diffusion. Tables and diagrams provide spatial and temporal statistics of experimental landscapes. Also available on this website are PDF versions of Les Hasbargen's publications and presentations.
Climate Monitoring and Diagnostic Laboratory: Carbon Cycle Greenhouse Gases
The National Oceanic and Atmospheric Administration Climate Monitoring and Diagnostic Laboratory Carbon Cycle Greenhouse Gases group makes ongoing discrete measurements from land and sea surface sites and aircraft, and continuous measurements from baseline observatories and tall towers. These measurements document the spatial and temporal distributions of carbon-cycle gases and provide essential constraints to our understanding of the global carbon cycle. This website is an interactive atmospheric data visualization tool. This tool enables users to view data, obtain details about sampling locations, manipulate and compare data sets and create custom graphs. Data includes information on a variety of gases, and can be viewed as seasonal patterns, time series, or latitudinal distribution.
Climate TimeLine Information Tool
The Climate TimeLine (CTL) Information Tool summarizes climate history for time spans from 1 year to 100,000 years ago and beyond. The relation between human development, weather, and climate is explored. The CTL explains how past climate is measured, provides basic information on paleoclimatology, and explains the use of paleo proxies. There is a tutorial on drought and how to use the CTL to investigate that topic. There is also a climate glossary and links to climate and paleoclimate data.
Discover Our Earth
Discover Our Earth contains a wide range of information related to Earth science using graphs, maps, and movies. The focal topics are earthquakes, volcanoes, topography, plate tectonics, and sea level change. There are three main areas to access the data: Educators, Students, and Web Tools. The Educators section is designed to provide teachers with basic background information about selected Earth science topics and suggest several student activities and exercises that can be employed in classroom settings. Educators are encouraged to adopt, adapt, and modify exercises to suit their needs or situation. The Students section provides critical background information and primarily prepares students to start using the web tool QUEST (Quick Use Earth Science Study Tool). Using QUEST, students are able to experiment and test their own ideas and hypotheses related to any topics provided in these pages. With the tools and information provided, students are able to actively engage in an earth science knowledge discovery, critically evaluate the data and results, and reach their own conclusions about the earth system processes. Two Java-based, interactive data analyses and mapping tools allow customized access to a large variety of earth science data sets that are used by research scientists. The first Java applet, QUEST, has been designed and developed to be used by beginning and intermediate level earth science students. It has an easy-to-use interface that allows access to key earth science data sets. The second Java applet, GEOID (Geoscience Interactive Data tool), is more appropriate for advanced users, and provides a dynamic mapping interface and can be used to access all of the underlying earth science data sets.
NOAA Interactive GIS Climate Maps
This website contains an interactive GIS map with global temperatures, precipitation, ecosystems, population and other layers. The tool can zoom in and out, provide limited geographic information, and display a variety of climatic information.