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  • 2010-2014  (7)
  • 1995-1999  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of atmospheric chemistry 31 (1998), S. 299-319 
    ISSN: 1573-0662
    Keywords: surface ozone ; total ozone ; UV-B radiation ; radiation model ; ozone photolysis ; photochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Geosciences
    Notes: Abstract Record high near-surface ozone concentrations at two elevated sites (Chaumont, 1140 m asl, and Rigi, 1030 m asl) in Switzerland were observed simultaneously with extremely low total ozone during a fair weather period in mid-February 1993. An analysis of ozone, temperature, humidity, and wind profiles suggests that the surface ozone peaks were most possibly generated within the region in a layer between about 1000 and 1500 m asl. Mean diurnal cycles of ozone concentration during the period shows a strong increase from late morning to late afternoon at Chaumont and at the same time a decrease at the high alpine site Jungfraujoch (3580 m asl). The different diurnal ozone cycles can both be explained photochemically by taking into account the large difference in NOx concentrations (about two orders of magnitude) between the sites. Photochemical processes are also indicated by the diurnal cycles of NO2 and NO concentration. As a strong photochemical activity is not expected in mid-February at 47°N, we hypothesize that the extremely low total ozone played a role. Total ozone controls the amount of UV-B radiation reaching the troposphere and thus influences photochemical processes. Using a radiation model, we calculated an increase in ozone photolysis at Chaumont and Jungfraujoch of 73% and 83%, respectively, on the day with the lowest total ozone (243 DU) compared to average February conditions (335 DU). It is suggested that total ozone changes have the potential to stimulate photochemistry sufficiently to produce the observed surface ozone peaks at Chaumont and Rigi of 61 and 64 ppbv, respectively. A fog layer just below Chaumont during these days probably also influenced photochemistry, but on a smaller spatial scale. Our empirical results on the influence of changing UV radiation on tropospheric photochemistry are in close agreement with model studies of other groups. Although this case study represents unique conditions, a distinct anticorrelation between near-surface ozone at Chaumont and total ozone also appears in other years (1992–1997) when selecting fair weather days in mid-February. However, other influences cannot be excluded. The selected days provide evidence of a significant photochemical source of ozone in the mid-latitude lower troposphere in late winter.
    Type of Medium: Electronic Resource
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  • 2
    Publication Date: 2013-10-26
    Print ISSN: 0941-2948
    Electronic ISSN: 1610-1227
    Topics: Geography , Physics
    Published by Schweizerbart
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  • 3
    Publication Date: 2013-10-13
    Print ISSN: 0940-5550
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Philosophy
    Published by oekom
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  • 4
    Publication Date: 2024-01-09
    Keywords: Comment; ERA-CLIM; European Reanalysis of Global Climate Observations; File size; Uniform resource locator/link to file
    Type: Dataset
    Format: text/tab-separated-values, 9 data points
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  • 5
    Publication Date: 2024-01-09
    Keywords: Comment; ERA-CLIM; European Reanalysis of Global Climate Observations; File size; Uniform resource locator/link to file
    Type: Dataset
    Format: text/tab-separated-values, 9 data points
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  • 6
    Publication Date: 2024-02-10
    Keywords: Comment; ERA-CLIM; European Reanalysis of Global Climate Observations; File size; Reference of data; Uniform resource locator/link to file
    Type: Dataset
    Format: text/tab-separated-values, 36 data points
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  • 7
    Publication Date: 2024-02-10
    Keywords: Aalborg; Aasiaat; Aberdeen/Reg., Sd.; Aberdeen Proving Grounds, Md.; Aberporth; Abha; Abidjan; Abu Dhabi Inter. Airport; Abu Hamed; Abuja; Acapulco, Gro.; Accra; Adana/Bolge; Addis Ababa-Bole; Adelaide Airport; Aden; Adrar; Aerop.Internacional Merida, Yuc; Aerop. Internacional Mexico, D.F.; Afghanistan; Agadez; Agadir; Agadir Al Massira; Agalega; Agartala; Agra; Ahmadabad; Ahwaz; Ajaccio; Akita; Aktobe; Albany Airport; Albany County Airport, Ny.; Albemarle; Albuquerque/Int., Nm.; Aldan; Aleksandrovskoe; Aleksandrovsk-Sahalinskij; Aleppo International Aeroport; Alert Ua, Nu; Alexandria/Nouzha; Algeria; Al Hoceima; Alice Springs Airport; Allahabad/Bamhrauli; Al-Madinah; Almaty; Al-Qaisumah; Alta Floresta; Altai; Altay; Altenstadt; Amarillo/Intl., Tx.; Ambala; Ambon/Pattimura; Amderma; American Samoa; Amritsar; Amundsen-Scott; Anadyr; Anchorage/Int., Ak; Angarsk; Angola; Ankara/Central; Annaba; Annette Island, Ak; Anqing; Antalaha; Antananarivo/Ivato; Antarctica; Antarctica, East; Antarctica, west; Antigua and Barbuda; Antofagasta; Apia; Arad; Arctic Ocean; Argentina; ArhangelSk; Armenia; Arvaiheer; Ashgabat; Asmara; Asswan; Astrahan; Asuncion/Aeropuerto; Atar; Athalassa; Athinai airport; Atuona; Atyrau; Aurangabad Chikalthan Aerodrome; Australia; Austria; Avon Park Gunnery Range, Fl.; AWIPEV; AWIPEV_based; Ayan; Azerbaijan; Bacau; Baengnyeongdo; Bagdarin; Baghdad; Baguio; Bahamas, The; Baharia; Bahraich; Bahrain; Baise; Baker Lake Ua, Nwt; Balhash; Balikpapan/Sepinggan; Bamako/Senou; Banda Aceh/Blang Bintang; Bandarabbass; Bandung/Husein; Bangalore; Bangassou; Bangkok; Bangladesh; Bangui; Banjarmasin/Syamsudin Noor; Banyuwangi; Barabinsk; Barbados; Barcelona; Bareilly; Barisal; Bar Khan; Barnaul; Barquisimeto; Barrow/W. Post W. Rogers; Basco; Base Marambio; Basrah; Batouri; Bau-Bau/Beto Ambari; Bauerfield; Beauvecchain; Bechar; Beijing; Beitbridge; Bejaia-Aeroport; Belem; Belgium; Belize; Belize/Phillip Goldston Intl. Airport; Bellingshausen; Belo Horizonte(Confins); Bengkulu/Padang Kemiling; Beni-Abbes; Beni-Mellal; Benin; Benina; Beograd/Kosutnjak; Berberati; Bergen; Bermuda Naval Air Station Kindley; Bet Dagan; Bethel/Bethel Airport, Ak; Bethlehem; Beyrouth; Bhagalpur; Bhopal/Bairagarh; Bhubaneswar; Bhuj-Rudramata; Biak/Frans Kaisiepo; Bikaner; Bilma; Bima/M.Salahuddin; Bintulu; Birjand; Birmingham, Al; Bir Moghrein; Birni-NKonni; Bishkek; Biskra; Bismarck/Mun., Nd.; Bitam; Bizerte; Bjornoya; Blacksburg, Va.; Blagovescensk; Bloemfontein Airport; Boa Vista; Bobo-Dioulasso; Bodo; Bogota/Eldorado; Bogra; Bogucany; Boise/Mun., Id.; Bolivia; Bologoe; Bombay / Santacruz; Bom Jesus Da Lapa; Bor; Bora-Bora; Bordeaux Merignac; Borzya; Bosnia-Herzegowina; Bossangoa; Botswana; Bouar; Brasilia; Bratsk; Brazil; Brazzaville /Maya-Maya; Brest; Brindisi; Brisbane Aero; British Indian Ocean Territory; Brize Norton; Brno-Sokolnice; Broadview, Sask; Broome Airport; Brownsville/Int., Tx; Brunei; Brunei Airport; Bucuresti Inmh-Banesa; Budapest/Pestszentlorinc; Buffalo/Greater Buffalo Int., Ny.; Buffalo Range; Bukoba; Bulawayo; Bulgaria; Burkina Faso; Butterworth; Byelarus; Cagliari/Elmas; Cairns Aero; Calcutta/Dum Dum; Calgary IntL, Alta; Camaguey, Camaguey; Ca Mau; Camborne; Cambridge Bay Ua, Nwt; Cameroon; Campo Grande; Canada; Canberra Airport; Cancun; Cape Kennedy, Fl.; Capel Dewi; Cape San Blas, Fl.; Cape Town Intnl. Airport; Caracas/Maiquetia Aerop. Intl. Simon Bolivar; Caravelas; Caribou/Mun., Me.; Carnarvon Airport; Car Nicobar; Carolina; Casablanca; Casa Blanca, La Habana; Casey; Castor Bay; Cayman Islands; Ceduna Amo; Central African Republic; Chad; Changchun; Changsha; Chanhassen, Mn.; Chanthaburi; Chara; Charleston/Mun., Sc.; Charleville Aero; Chatham, Ma.; Chatham Island; Chenzhou; Chernivtsi; Cherskij; Chhor; Chiang Mai; Chichijima; Chifeng; Chihuahua, Chih.; Chile; Chileka; China; China Lake, Naf, Ca.; Chita; Chitral; Chittagong; Choibalsan; Chokurdah; Chongqing; Christmas Island; Churchill Ua, Man; Chuuk, Eci; Cilacap; Cirebon/Jatiwangi; Ciudad Bolivar; Claiborne Range, La.; Cluj-Napoca; Cobar Mo; Cochin/Willingdon; Coco Island; Cocos (Keeling) Islands; Cocos Island Aero; Coffs Harbour Mo; Cold Bay, Ak; Cold Lake A, Alta; Colombia; Colombo; Colonia Juan Carrasco Mazatlan, Sin.; Comodoro Rivadavia Aero; Comoros; Conakry; Concordia; Congo; Constantine; Cook Islands; Coolidge Field, Antigua; Coral Harbour Ua, Nwt; Cordoba Aero; Corozal Oeste; Corpus Christi/Int., Tx.; Corumba; Costa Rica; Cotonou; CoxS Bazar; Croatia; Cuba; Cuiaba; Cuneo-Levaldigi; Curitiba; Curug/Budiarto; Cuyo; Cwc Vishakhapatnam/Waltair; Cyprus; Czech Republic; Dakar/Yoff; Dakhla; Dal Bandin; Dalian; DalNerechensk; Damascus International Airport; Damazine; Dammam Airport; Da Nang; Danmarkshavn; Dar-El-Beida; Dar Es Salaam Airport; Darwin Airport; Date; Davao Airport; Davis; Dawei; De Aar; De Bilt; Dehradun; Deleted - No Obs; Del Rio/Int., Tx.; Denmark; Denpasar/Ngurah Rai; Denver/Stapleton Int., Co.; Dera Ismail Khan; Dhahran; Dhaka; Dibrugarh /Mohanbari; Diego Garcia; Diego-Suarez; Dilli/Dilli Airport; Dilli/Komoro; Divnoe; Diyarbakir-Bolge; Djambala; Djanet; Djelfa; Djerba Mellita; Djibouti; Dodge City/Mun., Ks.; Dodoma; Doha International Airport; Dolisie; Dominican Republic; Dongola; Douala R.S.; Drobeta Turnu Severin; Drosh; Dulan; Dumont DUrville; Dundo; Dunhuang; Duration, number of days; Durban Intnl. Airport; Dushanbe; Dzaoudzi/Pamanzi; East London; East Sale Airport; Ecuador; Edmonton Namao Alta; Edmonton Stony Plain; Edmonton Stony Plain Cs, Alta; Edwards Afb, Ca.; Egypt; Eilat; Ejin Qi; Ekimchan; Ekofisk; El Arish; El Borma; Eldoret; Elevation of event; El Fasher; El-Golea; Elko, Nv.; El Obeid; El-Oued; El Salvador; Elsenborn; El Tor; Embu; Emden-Flugplatz; EmelJanovo; Empalme, Son.; Enisejsk; Enshi; ERA-CLIM; Erbogacen; Erenhot; Eritrea; Errachidia; Erzurum Bolge; Esfahan; Esperance; Essen; Estonia; Ethiopia; Eucla; Eureka Ua, Nwt; European Reanalysis of Global Climate Observations; Event label; Ezeiza Aero; Fairbanks/Int., Ak; Falkland Islands; Farafra; Faroe Islands; Federated States of Micronesia; Feni; Fernando De Noronha; Fianarantsoa; Fiji; Finland; Flagstaff, Az; Floriano; Florianpolis; Fortaleza; Fort Benning, Ga; Fort Carson, Co.; Fort-Dauphin; Fort Hood, Tx.; Fort Huachuca, Az.; Fort Nelson Ua, Bc; Fort Riley, Ks.; Fort Sill, Ok.; Fort Smith Ua, Nwt; Fort Stewart Reservation, Ga; Fort Wayne/Mun., Baer Fld., In.; Fort Worth, Tx.; Foz Do Iguacu; France; French Guyana; French Polynesia; French Southern & Antarctic Lands; Fritzlar-Kasseler Warte; Ft.Knox, Ky.; FuaAmotu; Fukuoka; Funafuti; Funchal; Fuyang; Fuzhou; Gabon; Gadag; Gafsa; Gagetown; Galati; Galeao; Gan; Ganzhou; Gao; Garissa; Garoua; Garze; Gauhati; Gaya; Gaylord, Mi.; George Airport; Georgia; Geraldton Airport; Germany; Germany, Schleswig-Holstein; Geser; Ghana; Ghardaia; Gibraltar; Giles Meteorological Office; Gisborne Aerodrome; Glasgow/Int., Mt.; Gmo Im.E.K. Fedorova; Goa/Dabolim Airport; Goa/Panjim; Gokwe; Golmud; Gomel; Goose Bay, Nfld; Gopalpur; Gorakhpur; Gorontalo/Jalaluddin; Gosan; Goteborg/Landvetter; Gough Island; Gove Airport; Grand Junction/Walker Field, Co.; Grantley Adams; Gray, Me.; Graz-Thalerhof-Flughafen; Great Falls, Mt.; Greece; Green Bay/A.-Straubel, Wi.; Greenland; Greensboro/G.-High Pt., Nc.; Greifswald; Guadalajara, Jal.; Guadeloupe; Guam; Guantanamo, Oriente; Guatemala; Guilin; Guinea; Guinea-Bissau; Guiyang; Gunung Sitoli/Binaka; Gustavia, St. Barthelemy; Guyana; Gwalior; Gwangju Ab; Gweru; Gyanca; Habarovsk; Hachijojima/Omure; Hacienda Ylang Ylang Veracruz, Ver.; Hahaya International Airport; Haikou; Hail; Hailar; Hakasskaja; Hall Beach Ua, Nu.; Halley; Halls Creek Airport; Hamamatsu Ab; Hambantota; Hamheung; Hami; Hangzhou; Ha Noi; Hanty-Mansijsk; Hanzhong; Harare; Harbin; Hatanga; Hato Airport, Curacao; Helwan; Heraklion airport; Herat; Hereheretue; Herstmonceux; Heuksando; Hezuo; Hilo, Hi; Hobart Airport; Hohenpeissenberg; Hohhot; Hokitika Aerodrome; Honduras;
    Type: Dataset
    Format: text/tab-separated-values, 32341 data points
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  • 8
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    Unknown
    PANGAEA
    In:  Supplement to: Stickler, Alexander; Brönnimann, Stefan; Jourdain, Sylvie; Roucaute, Eméline; Sterin, Alexander M; Nikolaev, Dmitrii; Valente, Maria Antónia; Wartenburger, Richard; Hersbach, Hans; Ramella Pralungo, Lorenzo; Dee, Dick P (2014): Description of the ERA-CLIM historical upper-air data. Earth System Science Data, 6(1), 29-48, https://doi.org/10.5194/essd-6-29-2014
    Publication Date: 2024-01-09
    Description: Historical, i.e. pre-1957, upper-air data are a valuable source of information on the state of the atmosphere, in some parts of the World back to the early 20th century. However, to date reanalyses have only partially made use of these data, and only of observations made after 1948. Even for the period between 1948 (the starting year of the NCEP/NCAR reanalysis) and the International Geophysical Year in 1957 (the starting year of the ERA-40 reanalysis), when the global upper-air coverage reached more or less its current status, many observations have not been digitised until now. The Comprehensive Historical Upper-Air Network (CHUAN) already compiled a large collection of pre-1957 upper-air data. In the framework of the European project ERA-CLIM, significant amounts of additional upper-air data have been catalogued (〉 1.3 mio station days), imaged (〉 200,000 images) and digitised (〉 700,000 station days) in order to prepare a new input dataset for upcoming reanalyses. The records cover large parts of the globe, focussing on so far less well covered regions such as the Tropics, the polar regions and the Oceans, and on very early upper-air data from Europe and the US. The total number of digitised/inventoried records is 61/101 for moving upper-air data, i.e. data from ships etc., and 735/1,783 for fixed upper-air stations. Here, we give a detailed description of the resulting dataset including the metadata and the quality checking procedures applied. The data will be included in the next version of CHUAN.
    Keywords: ERA-CLIM; European Reanalysis of Global Climate Observations
    Type: Dataset
    Format: application/zip, 813 datasets
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