Available online
Description
The amount of ozone varies naturally from day to day. But in the southern hemisphere something abnormal now happens each spring above Antarctica.
The amount of ozone varies naturally from day to day. But in the southern hemisphere something abnormal now happens each spring above Antarctica.
| Module code and title: | S342, Physical chemistry: principles of chemical change |
|---|---|
| Item code: | S342; 01; 1996 |
| First transmission date: | 1996 |
| Published: | 1996 |
| Rights Statement: | Rights owned or controlled by The Open University |
| Restrictions on use: | This material can be used in accordance with The Open University conditions of use. A link to the conditions can be found at the bottom of all OUDA web pages. |
| Duration: | 00:23:59 |
| + Show more... | |
| Producer: | David Jackson |
| Contributors: | Mario Molina; Adrian Tuck; Kiki Warr |
| Publisher: | BBC Open University |
| Keyword(s): | Antarctic circle; CFC's; Sun's ultra-violet rays |
| Subject terms: | Air--Pollution; Greenhouse effect,atmospheric; Ozone layer depletion; Ozone--Environmental aspects |
| Footage description: | Footage - Earth from space (0'21"-1'11") - Fridges being dumped and crushed. Aerosol cans (1'30"-2'09") - Graphic if uv radiation absorbed in the ozone layer. Colour still of polar stratospheric clouds. Graphic of catalytic cycle (2'51"-3'45") - Graphic of reaction of methane & reaction of chlorine monoxide (4'05"-4'40") - Assembly of plane (4'49"-5'10") - Graphic of map, flight path and plot of 23 Aug (6'07"-6'28") - Graphic of map and flight path 16 Sept. Space shuttle. NASA's Upper Atmosphere Research Satellite (UARS) (6'46"-7'46") - Animation of UARS. Computer animation of rotating Earth showing Antarctica (7'47"-8'31") - Colour still of polar stratospheric clouds. Sunrise. Computer animation of centre of Antarctica and evolution of stratospheric polar vortex (8'57"-10'33") - University of East Anglia. Clouds (10'49"-11'07") - Atmospheric Chemistry Group's laboratory at UEA. Ultra high vacuum chamber. Heater and ther mocouple. Infra red spectrum (11'32"-12'51"). Graphic of gaseous hydrogen chloride reacting with water to give a chloride ion (13'34"-14'18") - Computer animation of evolution of southern hemisphere ozone hole (14'37"-15'35") - Ice covered sea, people and equipment. Ice/sea swell (15'36"-16'21") - Computer animation of Earth/Antarctica. Computer animation of evaluation of southern hemisphere ozone hole (16'22"-17'19") - Night-time balloon launch (17'52"-18'23") - Day-time balloon launch (18'35"-19'19") - 3D model of atmospheric transport (19'34"-19'50") - Computer animation of chlorine monoxide evolving during 94/95 winter (20'14"-21'25") - Computer animation of rotating Earth/clouds. Earth from space (21'45"-22'09") - Computer animation of Arctic vortex. Aerosol. Earth from space. Margaret Thatcher at conference (22'38"-23'15"). |
| Master spool number: | DOU8475 |
| Production number: | FOUS836A |
| Videofinder number: | 5070 |
| Available to public: | no |
