Ole Humlum

• Garcia-Oteyza, J.; Oliva, M.; Palacios, D.; Fernández-Fernández, J.M.; Schimmelpfennig, I. & Andrés, N. [Vis alle 18 forfattere av denne artikkelen] (2022). Late Glacial deglaciation of the Zackenberg area, NE Greenland. Geomorphology. ISSN 0169-555X. 401. doi: 10.1016/j.geomorph.2022.108125.
• Connolly, Ronan; Soon, Willie; Connolly, Michael; Baliunas, Sallie; Berglund, Johan & Butler, C. John [Vis alle 23 forfattere av denne artikkelen] (2021). How much has the Sun influenced Northern Hemisphere temperature trends? An ongoing debate. Research in Astronomy and Astrophysics (RAA). ISSN 1674-4527. 21(6). doi: 10.1088/1674-4527/21/6/131.
• Strand, Sarah Marie; Christiansen, Hanne H; Johansson, Margareta; Åkerman, Jonas & Humlum, Ole (2020). Active layer thickening and controls on interannual variability in the Nordic Arctic compared to the circum-Arctic. Permafrost and Periglacial Processes. ISSN 1045-6740. doi: 10.1002/ppp.2088. Fulltekst i vitenarkiv
• Chylek, Petr; Hengartner, Nicholas; Lesins, Glen; Klett, James D.; Humlum, Ole & Wyatt, Marcia [Vis alle 7 forfattere av denne artikkelen] (2014). Isolating the anthropogenic component of Arctic warming. Geophysical Research Letters. ISSN 0094-8276. 41(10), s. 3569–3576. doi: 10.1002/2014GL060184.
• Humlum, Ole; Stordahl, Kjell & Solheim, Jan Erik (2013). The phase relation between atmospheric carbon dioxide and global temperature. Global and Planetary Change. ISSN 0921-8181. 100, s. 51–69. doi: 10.1016/j.gloplacha.2012.08.008. Vis sammendrag

  Abstract Using data series on atmospheric carbon dioxide and global temperatures we investigate the phase relation (leads/lags) between these for the period January 1980 to December 2011. Ice cores show atmospheric CO2 variations to lag behind atmospheric temperature changes on a century to millennium scale, but modern temperature is expected to lag changes in atmospheric CO2, as the atmospheric temperature increase since about 1975 generally is assumed to be caused by the modern increase in CO2. In our analysis we use eight well-known datasets; 1) globally averaged well-mixed marine boundary layer CO2 data, 2) HadCRUT3 surface air temperature data, 3) GISS surface air temperature data, 4) NCDC surface air temperature data, 5) HadSST2 sea surface data, 6) UAH lower troposphere temperature data series, 7) CDIAC data on release of anthropogene CO2, and 8) GWP data on volcanic eruptions. Annual cycles are present in all datasets except 7) and 8), and to remove the influence of these we analyze 12-month averaged data. We find a high degree of co-variation between all data series except 7) and 8), but with changes in CO2 always lagging changes in temperature. The maximum positive correlation between CO2 and temperature is found for CO2 lagging 11–12 months in relation to global sea surface temperature, 9.5-10 months to global surface air temperature, and about 9 months to global lower troposphere temperature. The correlation between changes in ocean temperatures and atmospheric CO2 is high, but do not explain all observed changes.

• Lilleøren, Karianne Staalesen; Humlum, Ole; Nesje, Atle & Etzelmuller, Bernd (2013). Holocene development and geomorphic processes at Omnsbreen, southern Norway: Evidence for glacier-permafrost interactions. The Holocene. ISSN 0959-6836. 23(6), s. 796–809. doi: 10.1177/0959683612471984.
• Christiansen, Hanne H; Humlum, Ole & Eckerstorfer, Markus (2013). Central Svalbard 2000-2011 Meteorological Dynamics and Periglacial Landscape Response. Arctic, Antarctic and Alpine research. ISSN 1523-0430. 45(1), s. 6–18. doi: 10.1657/1938-4246-45.1.6.
• Lilleøren, Karianne Staalesen; Etzelmuller, Bernd; Schuler, Thomas; Gisnås, Kjersti & Humlum, Ole (2012). The relative age of mountain permafrost - estimation of Holocene permafrost limits in Norway. Global and Planetary Change. ISSN 0921-8181. 92-93, s. 209–223. doi: 10.1016/j.gloplacha.2012.05.016.

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• Rouyet, Line; Christiansen, Hanne H; Humlum, Ole; McDonald, Ashton B. & Lauknes, Tom Rune (2021). Integration of geomorphological mapping and InSAR kinematics for a comprehensive inventory of rock glaciers in Nordenskiöld Land.
• Schrott, Lothar & Humlum, Ole (2017). Introduction to the special issue: permafrost and periglacial research from coasts to mountains. Geomorphology. ISSN 0169-555X. 293, s. 319–320. doi: 10.1016/j.geomorph.2017.08.034.
• Yndestad, Harald; Solheim, Jan-Erik; Humlum, Ole & Falk-Petersen, Stig (2016). The Solar System Large Planets influence on a new Maunder Minimum.
• Solheim, Jan-Erik & Humlum, Ole (2015). Ice Edge: Historic and Future.
• Humlum, Ole (2015). Climate4you update January 2015.
• Solheim, Jan-Erik & Humlum, Ole (2015). Historic and future ice limit in the North Atlantic - the Sun and the Moon play a role .
• Humlum, Ole (2015). Climate4you update YEAR 2014.
• Humlum, Ole (2015). Climate4you update December 2014.
• Humlum, Ole (2015). Climate change since 1850: What may be learnt from observations?
• Humlum, Ole (2014). Kommentar 2 til FNs klimapanels sammendrag. geoforskning.no.
• Humlum, Ole (2014). Climate4you update November 2014.
• Humlum, Ole (2014). Climate4you update October 2014.
• Humlum, Ole (2014). Climate4you update September 2014.
• Humlum, Ole (2014). Climate4you update August 2014.
• Humlum, Ole (2014). Climate4you update July 2014.
• Humlum, Ole (2014). Climate4you update June 2014.
• Humlum, Ole (2014). Climate4you update May 2014.
• Humlum, Ole (2014). Climate4you update April 2014.
• Humlum, Ole (2014). Climate4you update March 2014.
• Humlum, Ole (2014). Climate4you update February 2014.
• Humlum, Ole (2014). Climate4you update January 2014.
• Humlum, Ole (2014). Climate4you update YEAR 2013.
• Humlum, Ole (2014). Climate4you update December 2013.
• Gisnås, Kjersti; Etzelmuller, Bernd; Christiansen, Hanne H; Elberling, Bo; Engström, Jonas & Hjort, Jan [Vis alle 10 forfattere av denne artikkelen] (2014). A First Nordic Permafrost Map for Norway, Sweden and Finland.
• Humlum, Ole (2013). Hvordan blir Svalbards klima de neste 20-25 år? Vis sammendrag

  Foredraget tar for seg naturlige klimavariasjoner i forhold til menneskeskapte

• Lilleøren, Karianne Staalesen; Etzelmuller, Bernd; Gisnås, Kjersti; Humlum, Ole & Schuler, Thomas (2013). Relative age and Holocene distribution of permafrost in Norway.
• Humlum, Ole (2013). Kommentar til FNs klimapanels sammendrag. geoforskning.no.
• Mörner, N.-A.; Tattersall, R.; Humlum, Ole & Solheim, J.-E. (2013). General conclusions regarding the Planetary–Solar–Terrestrial interaction. Pattern Recognition. ISSN 0031-3203.
• Scafetta, Nicola; Humlum, Ole; Solheim, Jan Erik & Stordahl, Kjell (2013). Comment on “The influence of planetary attractions on the solar tachocline” by Callebaut, de Jager and Duhau. Journal of Atmospheric and Solar-Terrestrial Physics. ISSN 1364-6826. 102, s. 368–371. doi: 10.1016/j.jastp.2013.03.007.
• Humlum, Ole (2013). Climate4you update August 2013. Vis sammendrag

  Newsletter with key meteorological parameters for August 2013

• Humlum, Ole (2013). Climate4you update July 2013. Vis sammendrag

  Newsletter with key meteorological parameters for July 2013

• Humlum, Ole (2013). Mapping natural climate variations: why and how?
• Humlum, Ole (2013). Examples of natural climate variations missing in climate models; challenges for future climate models.
• Humlum, Ole (2013). Svalbard climate and meteorology; research history and modern status.
• Humlum, Ole (2013). Svalbard; a geological and topographic overview.
• Humlum, Ole (2013). Climate4you update October 2013. Vis sammendrag

  Newsletter with key meteorological parameters for October 2013.

• Humlum, Ole (2013). Climate4you update September 2013. Vis sammendrag

  Newsletter with key meteorological parameters for September 2013.

• Humlum, Ole (2013). IPCC’s 5th Assessment med mental dørvakt. geoforskning.no. Vis sammendrag

  Antakelsen om at CO2 styrer temperatur har låst FNs klimapanel fast i en feilaktig tankegang og hindrer alternative synspunkter.

• Humlum, Ole & Vold, Henrik Brattli (2013). Nå kommer kalde, harde vintre. [Internett]. NRK Viten. Vis sammendrag

  Solaktiviteten er på en nedadgående trend, og en britisk forsker mener det er 25 prosent sjanse for at sola blir like svak som under "den lille istid" for 400 år siden. Forskerne er uenige om konsekvensene.

• Humlum, Ole (2013). Climate4you update June 2013.
• Humlum, Ole (2013). Climate4you update May 2013.
• Humlum, Ole & Solheim, Jan-Erik (2013). Naturlige variasjoner og klimamodeller. geoforskning.no.
• Humlum, Ole & Solheim, Jan-Erik (2013). Vulkaner og klimamodeller. geoforskning.no.
• Humlum, Ole (2013). Takk og kommentar til Prestrud. geoforskning.no.
• Solheim, Jan-Erik & Humlum, Ole (2013). Kan vi stole på klimamodellene? geoforskning.no.
• Humlum, Ole (2013). Svar og tre spørsmål til Prestrud. geoforskning.no.
• Humlum, Ole (2013). Relasjonen mellom global temperatur og CO2 – Svar til Prestrud. geoforskning.no.
• Humlum, Ole (2013). Misvisende og urettmessig kritikk. geoforskning.no.
• Humlum, Ole (2013). Climate4you update April 2013.
• Foss, Håkon Frede; Humlum, Ole & Ellestad, Ole henrik (2013). Klimarealister skaper bekymring. Universitas. ISSN 0805-1798. 67(13), s. 14–15.
• Solheim, J.-E. & Humlum, Ole (2013). Naturlige variasjoner. Klassekampen. ISSN 0805-3839.
• Humlum, Ole (2013). Climate4you update March 2013.
• Humlum, Ole (2013). Climate4you update February 2013.
• From, Lars & Humlum, Ole (2013). Forskere: Katastrofer styrer klimadebatten. Jyllandsposten. s. 1–4.
• Jødal, Morten; Solheim, Jan-Erik & Humlum, Ole (2013). Mediene slipper ikke til skeptiske klimastemmer. Forskning.no. ISSN 1891-635X.
• Humlum, Ole (2013). Klimaendringer og årsakssammenheng.
• Humlum, Ole (2013). Climate4you update YEAR 2012.
• Humlum, Ole (2013). Climate4you update January 2013.
• Humlum, Ole (2013). Klimatolog i hardt vær. [Avis]. GEO.
• Humlum, Ole (2013). Mindre og mindre global oppvarmning. geoforskning.no. Vis sammendrag

  Ny norsk forskning antyder at fremtidens temperaturstigning blir lavere enn tidligere antatt. Det bør få konsekvenser for dagens klimamodeller, mener Ole Humlum.

• Humlum, Ole (2013). Climate4you update December 2012.
• Humlum, Ole (2012). Climate4you update November 2012.
• Humlum, Ole (2012). Past, present and future climate of the European Arctic.
• Humlum, Ole (2012). CO2 og klimaskepsis. [Radio]. NRK P2 EKKO.
• Humlum, Ole (2012). Climate4you update October 2012.
• Ellestad, O.H.; Humlum, Ole & Solheim, J.-E. (2012). Klima og folkeopplysning. Minervanett.
• Humlum, Ole (2012). Klimadebatt: Humlum svarer Prestrud. geoforskning.no. Vis sammendrag

  Professor Ole Humlum lar seg ikke overbevise av Pål Prestruds argument om at «flertallet har rett». Han velger i stedet å støtte seg til empiriske data.

• Humlum, Ole (2012). Climate4you update September 2012.
• Karlsson, Svenoluf & Humlum, Ole (2012). Arktisk Isminimum. [Avis]. Katternö 2012 Vol. 3, p.42.
• Humlum, Ole (2012). Riggade temperaturtrender. Katternö. 3, s. 5–5.
• Humlum, Ole (2012). Temperatur og atmosfærisk CO2. geoforskning.no. Vis sammendrag

  I en nylig publisert forskningsartikkel hevdet Humlum og medforfatterne at temperaturendringer styrer atmosfæriske endringer av CO2. Artikkelen har blitt heftig debattert, og her svarer Humlum på noe av kritikken og forsøker å oppklare enkelte misforståelser.

• Setså, Ronny & Humlum, Ole (2012). Temperaturen styrer CO2-nivået – ikke omvendt. [Internett]. GEO365 Nettavisen for geomiljøet. Vis sammendrag

  Data fra iskjerner har tidligere demonstrert at atmosfæriske endringer i CO2 har etterfulgt temperaturendringer de siste hundretusener av år. Nå har vi funnet bevis for at dette også gjelder i moderne tid, forteller Ole Humlum, professor ved Institutt for geofag ved Universitetet i Oslo og professor II ved Universitetet på Svalbard. Artikkelen, som snart publiseres i tidsskriftet Global and Planetary Change, peker i retning av at det er temperaturendringene på Jorda som har styrt økningen i konsentrasjonen av karbondioksid i atmosfæren de siste tiårene. Forskerne bak artikkelen er, foruten Ole Humlum, Kjell Stordahl, statistiker ved Telenor og Jan-Erik Solheim, professor emeritus ved Institutt for fysikk og teknologi ved Universitetet i Tromsø

• Humlum, Ole (2012). Climate4you update August 2012.
• Solheim, Jan-Erik & Humlum, Ole (2012). Jordrotasjonen, Sola, klima og nordlys. Astronomi. ISSN 0802-7587. 42(5), s. 20–25.
• Setså, Ronny & Humlum, Ole (2012). Temperaturendring styrer CO2-nivå. [Internett]. Geoforskning.no.
• Humlum, Ole (2012). Klimaalarmisterne har forvekslet årsag og virkning. Dispatch International.
• Humlum, Ole (2012). Svalbard Permafrost in a Long Time Perspective. Proceedings from the Tenth International Conference of Permafrost (TICOP), Salekhard, Russia, June 25-29, 2012. 4, s. 118–119.
• Humlum, Ole (2012). UN Climate Panel in big trouble. Dispatch International. s. 5–5.
• Humlum, Ole (2012). Climate4you update July 2012.
• Solheim, Jan-Erik; Humlum, Ole & Stordahl, Kjell (2012). Solar Signals in Temperature Series In and Near the North Atlantic.
• Humlum, Ole (2012). Naturlige klimaendringer i evaluering av norsk klimaforskning. geoforskning.no.
• Humlum, Ole (2012). Naturlige klimaendringer er undervurdert i norsk forskning. Forskning.no. ISSN 1891-635X.
• Humlum, Ole (2012). Climate4you update June 2012.
• Humlum, Ole (2012). Climate4you update May 2012.
• Solheim, Jan-Erik; Humlum, Ole & Stordahl, Kjell (2012). Solar Signals in Temperature Series from Locations in and near the North Atlantic. Vis sammendrag

  Solar Signals in Temperature Series from Locations In and Near the North Atlantic Jan Erik SOLHEIM 1, Ole HUMLUM 2, Kjell STORDAHL 3 1 University of Tromso, Norway 2 University of Oslo, Norway 3 Telenor, Norway Corresponding author: janesol@online.no +Presenter We have analyzed temperature series from Nordic and Northern Atlantic locations by means of Fourier and wavelet analyses and compared with similar analysis of solar activity proxies. The sunspot period and the Gleissberg period are identified in several of the local time series. In addition we have analyzed the last 4000 years of the reconstructed GISP2 surface temperarture from interior Greenland, which gives a low resolution temperature series until 1855 AD. Here we find dominant periods of the order 1100 and 2800 years, which are also present in the solar proxies covering similar periods. A forecast based on the strongest periods explains the temperature rise experienced after the Little Ice age. A temperature maxium is expected some time this century, before the cooling experienced since the Holocene maximum again will continue. A relation between the length of the sunspot cycle and the mean temperature in sunspot cycles for locations in Norway show that 25 – 60 % of the temperature variations the last 150 years may be attributed to the Sun. For locations as Iceland, Faroe Island and Svalbard the contribution is as high as 72%, For the costal locations investigated a lag of 10-12 years gives the highest correlation between sunspot length and temperature. This is an indication of ocean currents as the main vehicle for transporting heat from lower latitudes to the North Atlantic

• Humlum, Ole (2012). Issues relating to climate modeling, atmospheric CO2 and natural variations.
• Humlum, Ole (2012). Issues relating to atmospheric CO2 and global temperature that might be reconsidered by IPCC and others.
• Humlum, Ole (2012). Climate4you update April 2012.
• Humlum, Ole (2012). Nyanserte meninger om CO2 og klima? Forskning.no. ISSN 1891-635X.
• Humlum, Ole (2012). Climate4you update March 2012.
• Humlum, Ole (2015). Commentary and Analysis on the Whitehead & Associates 2014 NSW Sea-level Report. NIPCC. Vis sammendrag

  Carter R.M., de Lange W., Hansen, J.M., Humlum O., Idso C., Kear, D., Legates, D., Mörner, N.A., Ollier C., Singer F. & Soon W. 2014. Commentary and Analysis on the Whitehead & Associates 2014NSWSea-LevelReport. Nongovernmental International Panel on Climate Change (NIPCC), NIPCC Reference: E13.7268, 44 pp.

• Lilleøren, Karianne Staalesen; Etzelmuller, Bernd & Humlum, Ole (2012). Late-Pleistocene and Holocene mountain permafrost geomorphology of Norway and Iceland. Unipub forlag. ISSN 1501-7710. Fulltekst i vitenarkiv

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