The URGENT thematic programme was set up to integrate urban ecological and environmental research. It gathers together research projects related to Soil, Water, Ecology and Air Sciences. Data issued by the latter are archived at BADC. These mainly include ground based measurements in the vicinity of urban areas but also observations from aircraft, lab measurements and model results. Recorded parameters include atmospheric chemicals and aerosols, photolysis rates and meteorological variables. The largest atmospheric science related project is the PUMA consortium, which also has links with many of the other "Air" projects.

It includes data from URGENT Air Project No. 1981, collected in two 4-week campaigns. PUMA stands for "Pollution in Urban Midlands Atmospheres".

Project title: Observation, Modelling and Management of Urban
Air Pollution.

Subdirectories:

* Summer_1999 Data from the June-July 1999 campaign
(12/6/1999 - 13/7/1999).

* Winter_2000 Data from the January-February 2000 campaign
(17/1/2000 - 17/2/2000).