HOME >> BIOLOGY >> NEWS
Envisat observes resurgent ozone hole

The ozone hole is normally at its largest in September, but 2002 saw it at its smallest extent for more than a decade: 40% down on previous years. And a year ago yesterday ongoing satellite measurements of ozone - gathered by the Royal Dutch Meteorological Institute (KNMI) from the Global Ozone Monitoring Experiment (GOME) instrument on ESA's ERS-2 satellite - showed it splitting in two.

"Using GOME we have gathered global stratospheric ozone data over the last eight years," said Henk Eskes of KNMI. "And last year we were actually able to accurately predict the split a few days before it happened, as we were operating an ozone forecasting service."

This dramatic reverse came just two years after the ozone hole had reached a record size more than 30 million sq km in 2000.

There was speculation that last year's shrinking hole showed the ozone layer was recovering from damage caused by man-made chemicals including chlorofluorocarbons (CFCs) - in the past used in aerosol cans and refrigerators. But the bad news is that this year's ozone hole looks much more like the 2000 than the 2002 version.

The latest ozone measurements acquired yesterday by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) instrument aboard Envisat - ESA's latest Earth Observation spacecraft show this year's ozone hole is in no danger of splitting this time, and, with an area of 26 million sq km, is almost as big as the 2000 ozone hole. The Belgian Institute for Space Aeronomy (BIRA-IASB) generated this value-adding MIPAS data based on level 2 products provided by ESA.

MIPAS is a German-built instrument that works by measuring infrared emissions from the Earth's 'limb' the band of atmosphere between planetary surface and empty space, as observed from behind Envisat. Working through day and night, MIPAS can map the atmospheric concentrations of more than 20 trace gases, including ozone as well as the pollutants that attack it. This mak
'"/>

Contact: Claus Zehner
claus.zehner@esa.int
39-069-418-0544
European Space Agency
26-Sep-2003


Page: 1 2 3

Related biology news :

1. Envisat fishes up facts behind Chilean giant squid invasion
2. Envisat concludes a busy second year in orbit
3. Envisat radar altimetry tracks river levels worldwide
4. Envisat focuses on carbon-rich peat swamp forest fires
5. Envisats ASAR reveals extent of massive oil spill off Spanish coast
6. Multiphoton microscope observes cell membrane action
7. New fumigant to replace gas that damages ozone layer
8. New space-borne instrument to track greenhouse gases, ozone destroyers, and other pollutants
9. Increasing ozone over the Atlantic ocean
10. A shocking surprise: High voltage + rats = ozone, reopens power-line debate
11. Scripps scientists link ozone to atherosclerosis

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/14/2019)... ... May 13, 2019 , ... ... 4th, at a very special Pre-EWMA 2019 event at Gothenburg’s Universeum Aquarium. Guests ... Trends, Opportunities and Innovations in Advanced Wound Care. , SmartTRAK’s Advanced Wound Care ...
(Date:5/8/2019)... ... May 07, 2019 , ... Modality ... invitation-only community for world-class CIOs, CTOs, and technology executives. Modality Solutions ... firm that guarantees confidence in a company’s cold chain. Subject-matter experts provide ...
(Date:5/8/2019)... Conn. and TORONTO (PRWEB) , ... May 08, ... ... growth recapitalization of Axiom Real-Time Metrics (“Axiom”), a premier provider of unified eClinical ... II and III clinical trials and observational studies. Axiom is a leading e-clinical ...
Breaking Biology News(10 mins):
(Date:5/7/2019)... VANCOUVER, British Columbia (PRWEB) , ... May 06, ... ... will be a go-to resource for the growing number of repositories being asked ... We are grateful to the team of contributors who are world leaders, ...
(Date:5/2/2019)... ... April 30, 2019 , ... ... ISO 9001:2015 standard, REPROCELL USA Inc. has demonstrated its ability to provide ... USA Inc. aims to enhance customer satisfaction through the effective implementation of ...
(Date:5/2/2019)... ... May 02, 2019 , ... ... company, will present results documenting discrepancies between U.S. insurer policies for genetic testing ... at risk for hereditary breast and ovarian cancer (HBOC). , Jill ...
(Date:4/25/2019)... ... April 24, 2019 , ... ... for sales and service organizations, today announced global availability of Inference Studio’s latest ... enterprises of all sizes to harness the power of Google’s Contact Center ...
Breaking Biology Technology:
Cached News: