Table A9. IONS-06 Ozone Sonde Stations in Summer 2006 Station Latitude, Longitude Summer Period (Number Launched) Barbados 13.2, -59.5 19 Jul to 30 Aug (27) Beltsville, Md.a 39.0, -76.5 1-28 Aug (12) Boulder, Colo. 40.3, -105.2 14 Jul to 31 Aug (34) Bratt's Lake, Sask. 50.2, -104.7 1-30 Aug (29) Egbert, Ont.a 44.2, -79.8 1-30 Aug (15) Holtville, Calif. 32.8, -115.4 7-31 Aug (13) Houston, Tex.a 29.7, -95.4 1-31 Aug (19) Huntsville, Ala.a 35.3, -86.6 1 Aug to 2 Sep (30) Kelowna, B. C. 49.9, -119.4 2-30 Aug (27) Narragansett, R. I.a 41.5, -71.4 18 Jul to 30 Aug (30) Paradox, N. Y. 43.9, -73.6 30 Jun to 30 Aug (8) R/V Ronald H. Brown Gulf of Mex. 31 Jul to 11 Sep (35) Sable Is, N. S.a 44.0, -60.0 1-31 Aug (28) Socorro, N. M. 36.4, -106.9 1 Aug to 9 Sep (26) Stonyplain, Alberta 53.6, -114.1 9-30 Aug (4) Trinidad Head, Calif.a 40.8, -124.2 27 Jul to 31 Aug (31) Table Mountain, Calif. 34.4, -117.7 1-31 Aug (30) Mexico City 19.4, -98.6 22 Aug to 20 Sep (22) Valparaiso, Indiana 41.5, -87.0 2-31 Aug (5) Wallops Is, Va.a 37.9, -75.5 2-30 Aug (11) Walsingham, Ont. 42.6, -80.6 14-25 Aug (22) Yarmouth, N. S.a 43.9, -66.1 2-30 Aug (13) aSite also participated in IONS-04 [Thompson et al., 2007].