Weekly Water News

DATASTREME WES WEEK ONE: 6-10 September 2004


Water in the News:


REPORTS FROM THE FIELD --

A request: If you have some water-related experience that you would like to share with other WES participants, please send them to the email address appearing at the bottom of this document. Thank you. EJH


Concept of the Week: Touring the WES Homepage

NOTE: This Concept for the Week is a repeat of that which appeared in last week's Weekly Water News.

Welcome to DataStreme Water in the Earth System (WES)! You are embarking on a unique teacher-enhancement experience that focuses on water and energy flow in the global water cycle from an Earth system perspective. Throughout this learning experience, you will be accessing the WES Homepage frequently to obtain and interpret a variety of environmental information, including the latest observational data. The objective of this initial Concept of the Week is to explore features of the WES Homepage.

On Monday of each week of the course, we will post the current Weekly Water News that includes Water in the News(a summary listing of current events related to water), Concept of the Week (an in-depth analysis of some topic related to water in the Earth system), and Historical Events (a list of past hydrologic events such as major floods). When appropriate, Supplemental Information will be provided on some topic related to the principal theme of the week.

You will use the WES Homepage to access and download the second part of weekly Investigations A & B (plus supporting images) that begin in your WES Study Guide. These materials should be available by noon (Eastern Time) on Tuesday and Thursday. Click the appropriate buttons to download and print these electronic components of the investigations as well as your Chapter Progress and Investigations Response forms.

The body of the WES Homepage provides links to the Earth System, Atmospheric, Oceanic (Inland Seas), and Terrestrial Information, and extras--glossaries of terms, maps, educational links, and WES information. Following each section is a link to other sites that examine the various subsystems of the Earth system. Let's take a quick tour to become more familiar with the WES Homepage.

Under Atmospheric Information, click on Water vapor (WV) Satellite. This is the latest satellite depiction of atmospheric water vapor at altitudes generally between 3000 and 7000 m (10,000 to 24,000 ft). Press your "back" button and then click on Latest WV Animation to view the movement of water vapor and clouds in the atmosphere. Although water vapor is an invisible gas, satellite technology makes it possible for us to "see" and follow the flow of water vapor in the atmosphere as part of the global water cycle. Bright white blotches are clouds; black indicates areas of very little or no water vapor and, at the other extreme, milky white signals a relatively high concentration of water vapor. Use the "back" button on your viewer to return to the WES Homepage.

The flow and transformations of energy are fundamental aspects of the global water cycle. Heat flows within the Earth system from where it is warmer to where it is colder. In this regard, it is useful to monitor temperatures remotely, by satellite. For a global view of the satellite-derived pattern of sea-surface temperatures, click on Sea Surface Temperatures under Oceanic (and Inland Seas) Information. Note that the color scale at the bottom is in degrees Celsius and temperatures are averaged over a 7-day period. (Depending on your browser, you may have to place your mouse cursor on the slide bar to the right and scroll down to view the entire image.) Return to the WES Homepage.

As part of the global water cycle, precipitation that reaches the ground vaporizes back into the atmosphere, runs off into rivers and streams, seeps into the ground, or is stored in lakes or glaciers. Under Terrestrial Information, click on River Flood Conditions for the recent status of river levels monitored at various gauging stations around the nation. Note that in the Map Legend, river stage heights are compared to flood stage values. Now return to the WES Homepage.

Extras include color photographs arranged by week (chapter) to supplement your study of the WES textbook. For example, click on Chapter 1 and then click on the first thumbnail for an enlarged image with the caption, "Water in Three Phases."

Take a few minutes when you have time to browse the other data and information sources available via the WES Homepage. You may want to "bookmark" this page on your computer. Return frequently to get into the flow of DataStreme WES!

Concept of the Week: Questions

  1. The latest WV Animation indicates that clouds and water vapor generally move from [(west to east)(east to west)] across the nation.
  2. In the tropical Pacific, the highest sea-surface temperatures occur in the [(western)(eastern)] portion of the ocean basin.


Historical Events


Return to WES Homepage

URL: WES/news.html
Prepared by WES Central Staff and Edward J. Hopkins, Ph.D.,
email
hopkins@meteor.wisc.edu
© Copyright, 2004, The American Meteorological Society.