TY - JOUR A1 - Kirkwood, S. A1 - Dalin, P. A1 - RĂ©chou, A. T1 - Noctilucent clouds observed from the UK and Denmark – trends and variations over 43 years JO - Ann. Geophys. J1 - ANGEO VL - 26 IS - 5 SP - 1243 EP - 1254 Y1 - 2008/05/28 PB - Copernicus Publications SN - 1432-0576 UR - https://angeo.copernicus.org/articles/26/1243/2008/ L1 - https://angeo.copernicus.org/articles/26/1243/2008/angeo-26-1243-2008.pdf DO - 10.5194/angeo-26-1243-2008 ER -