British Antarctic Survey ozone data consist of observations made at the following stations: Halley, Antarctica, from 1956; Faraday, Antarctica, from 1964 (Faraday/Vernadsky from 1996); King Edward Point, South Georgia, from 1971 (until 1982); Rothera, Antarctica, from 1996. Observations at all stations are recorded in UTC. All observations at Halley and Vernadsky are made with the Dobson ozone spectrophotometer and are seasonal (Apr to Aug). Datasets include daily mean and monthly ozone values. Observations for ozone and nitrogen dioxide are made at Rothera using the SAOZ instrument, which can make observations throughout the year. There is also a Bentham spectro-radiometer at Rothera, which can be used to compute ozone levels. Full metadata on collection, instrumentation and calibration are available on the BAS ozone webpages.

Instrumentation was deployed in the Antarctic Peninsula region to monitor conditions occurring in the region of near-space surrounding the Earth. The opportunity was taken to link into a NASA satellite mission occurring at the same time and with similar goals - to study the dynamics of the Earth-Sun system at a location where the two systems are finely balanced. The experiments have been used to interpret the changes in plasma composition at the same point in space due to solar weather events. A refurbished VLF Doppler receiver was installed at Rothera to measure plasmaspheric electron concentration. The electron number density was determined from analysis of the 15 minute integration providing group delay times, Doppler shift and arrival bearing of whistler-mode signals, of man-made transmissions, from MSK format transmitters from north east America. If you would like more information about the VLF Doppler receiver data that is still being routinely collected at Rothera please contact the UK Polar Data Centre at the British Antarctic Survey.

The Skiymet meteor radar was deployed at Rothera (68S, 68W) in Feb 2005. The radar measures the winds, waves and tides of the mesosphere and lower thermosphere (MLT) regions of the atmosphere. The radar routinely makes three types of measurement: 1. horizontal winds at heights of ~ 75 - 105 km from the drifting of meteors as they are carried by the winds of the MLT; 2. atmospheric temperature from the decay rate of meteor echoes; 3. meteor fluxes, derived from several thousand meteors per day. The radar has been used with an existing, identical, radar in the Arctic at the conjugate latitude of 68N, 21E (Esrange) to produce accurate climatologies of winds, waves and tides - and to quantify the differences between the Antarctic and Arctic MLT (using identical radars eliminates otherwise problematic measurement biases). Other studies will carefully examine meteor/MF-radar instrument biases and apply a developing technique to continually measure temperature using the decay rate of meteor echoes. The radar complements the existing OH temperature spectrometer and imaging airglow camera at Rothera.