Featured Research

from universities, journals, and other organizations

NASA Langley Contributes Instruments To Complete "Global Picture" Of Earth

Date:
December 16, 1999
Source:
NASA Langley Research Center
Summary:
Scientists will soon gain new knowledge of the atmosphere, oceans, land, and their role in global environmental change. And NASA Langley's Clouds and the Earth's Radiant Energy System (CERES) instruments will be part of an international effort to complete this picture of Earth as a total system when it launches into orbit on the NASA Terra satellite December 16.

Scientists will soon gain new knowledge of the atmosphere, oceans, land, and their role in global environmental change. And NASA Langley's Clouds and the Earth's Radiant Energy System (CERES) instruments will be part of an international effort to complete this picture of Earth as a total system when it launches into orbit on the NASA Terra satellite December 16.

Related Articles


CERES is one of five instruments that will fly aboard Terra and contribute to the comprehensive look at the Earth system. Terra is a joint Earth Observing System venture between the United States, Japan, and Canada. Terra, with CERES, will collect for the first time ever, simultaneous global information about clouds, water vapor, and the Earth's radiation balance. This is the energy that reaches the Earth from the Sun and the energy radiated from Earth into space.

"We are looking for a whole new level of accuracy in these radiation energy flows," said Langley's Dr. Bruce Wielicki, one of the lead scientists for the CERES project. "To achieve this, we will fly two instruments on Terra. One will scan and immediately observe the entire Earth from equator to pole, and the second one will scan in angles to cover the hemisphere of radiation flow, which changes dramatically from upward direction to the limb, or edge, of the Earth."

Solar and Earth-emitted energy data and cloud measurements taken by CERES will be used to provide a critical check for the models used by scientists to simulate global climate and predict the effects of global warming, according to lead scientists Wielicki and Dr. Bruce Barkstrom.

Some Terra products will be produced by combining data from more than one instrument, allowing the instrument teams to develop broad science approaches to specific problems.

"The Terra observatory brings entirely new capabilities by combining multiple instruments looking at the Earth at the same place and time," said Wielicki. "While CERES measures the solar energy reflected back to space and Earth thermal energy emitted to space, the other instruments will bring new, more accurate measurements of the clouds and aerosols that cause changes in the energy flow, allowing for new studies of cause and effect in the climate system."

Analysis of the CERES data will lead to a better understanding of the role of clouds and the energy cycle in global climate change. The CERES instruments will extend the data collection begun in the 1980s by NASA's Earth Radiation Budget Satellite (ERBS).

"We are very excited to continue the climate record started with ERBS, incredibly still alive after fifteen years in space," continued Wielicki. "This climate record is a critical measure of the amount of radiation energy flowing in and out of the planet and is likely to change as the climate changes. We are also very interested in studying the changes which have occurred during and since the recent 1997/1998 major El Nino."

CERES data from a NASA satellite launched in November 1997, the Tropical Rainfall Measuring Mission (TRMM), is already helping scientists understand the flow of radiation in the tropics, but the new instruments on Terra will extend these observations to cover the entire globe.

NASA Langley Research Center, Hampton, Va., designed and manages the two CERES instruments that will fly aboard Terra. The CERES instruments were built by the TRW Corp., Redondo Beach, Calif.

NASA Goddard Space Flight Center, Greenbelt, Md., is responsible for the development and launch of the satellite, and for the controlling the ground operations system. The Terra Project Office, located at NASA Goddard, manages the satellite for NASA's Office of Earth Science in Washington, D.C.

Follow-on CERES instruments are planned which will create a continuous 15-year history of highly accurate radiation and cloud data for climate analyses.

Terra is scheduled for launch from Vandenberg Air Force Base, Calif., on Dec. 16. The 25-minute launch window opens at 1:33 p.m. EST (10:33 a.m. PST). Separation of the spacecraft from its launch vehicle will occur about 14 minutes after launch.

NASA Television will broadcast the launch and concurrent science briefing live. The briefing will feature a question-and-answer session for media from participating NASA centers. NASA TV is available on GE-2, transponder 9C (C-Band), located at 85 degrees West longitude, vertical polarization with a frequency of 3880 MHz and audio of 6.8 MHz.

More CERES information may be obtained at http://asd-www.larc.nasa.gov/ceres/ASDceres.html or by contacting the NASA Langley Research Center, Hampton, Va., at 757-864-6786. The Terra web site can be found at http://terra.nasa.gov/.)


Story Source:

The above story is based on materials provided by NASA Langley Research Center. Note: Materials may be edited for content and length.


Cite This Page:

NASA Langley Research Center. "NASA Langley Contributes Instruments To Complete "Global Picture" Of Earth." ScienceDaily. ScienceDaily, 16 December 1999. <www.sciencedaily.com/releases/1999/12/991216075938.htm>.
NASA Langley Research Center. (1999, December 16). NASA Langley Contributes Instruments To Complete "Global Picture" Of Earth. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/1999/12/991216075938.htm
NASA Langley Research Center. "NASA Langley Contributes Instruments To Complete "Global Picture" Of Earth." ScienceDaily. www.sciencedaily.com/releases/1999/12/991216075938.htm (accessed October 25, 2014).

Share This



More Earth & Climate News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

EU Gets Climate Deal, UK PM Gets Knock

EU Gets Climate Deal, UK PM Gets Knock

Reuters - Business Video Online (Oct. 24, 2014) EU leaders achieve a show of unity by striking a compromise deal on carbon emissions. But David Cameron's bid to push back EU budget contributions gets a slap in the face as the European Commission demands an extra 2bn euros. David Pollard reports. Video provided by Reuters
Powered by NewsLook.com
Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Reuters - Innovations Video Online (Oct. 24, 2014) Miniature deep sea animals discovered off the Australian coast almost three decades ago are puzzling scientists, who say the organisms have proved impossible to categorise. Academics at the Natural History of Denmark have appealed to the world scientific community for help, saying that further information on Dendrogramma enigmatica and Dendrogramma discoides could answer key evolutionary questions. Jim Drury has more. Video provided by Reuters
Powered by NewsLook.com
Raw: Tornado Rips Roofs in Washington State

Raw: Tornado Rips Roofs in Washington State

AP (Oct. 24, 2014) A rare tornado ripped roofs off buildings, uprooted trees and shattered windows Thursday afternoon in the southwest Washington city of Longview, but there were no reports of injuries. (Oct. 24) Video provided by AP
Powered by NewsLook.com
Fast-Moving Lava Headed For Town On Hawaii's Big Island

Fast-Moving Lava Headed For Town On Hawaii's Big Island

Newsy (Oct. 24, 2014) Lava from the Kilauea volcano on Hawaii's Big Island has accelerated as it travels toward a town called Pahoa. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins