My research interests cover: 

• Internal climate variability on interannual, decadal and multidecadal timescales
• Teleconnections within the tropics and from low to high latitudes
• Inter-basin interactions
• Tropical interannual variability 
• Pacific Decadal Variability and Atlantic Multidecadal Variability
• Monsoons
• Climate predictions

Report

• Dyrrdal, Anita Verpe; Bakke, Sigrid Jørgensen; Hanssen-Bauer, Inger et al. (2025). Klima i Norge – kunnskapsgrunnlag for klimatilpasning oppdatert i 2025. (external link)

Academic lecture

• Svendsen, Lea (2025). Er ekstremer den nye normalen?. (external link)
• Svendsen, Lea (2025). Climate Services for and with the renewable energy sector: examples from Norway. (external link)
• Wang, Yiguo; Counillon, Francois Stephane; Svendsen, Lea et al. (2025). An ensemble-based coupled reanalysis of the climate from 1860 to the present (CoRea1860+). (external link)
• Svendsen, Lea (2025). Analysis plans for CoRea1860+. (external link)
• Dörr, Jakob Simon; Bonan, David; Årthun, Marius et al. (2024). Forced and internal components of observed Arctic sea ice changes. (external link)
• Svendsen, Lea (2023). Pacific contribution to decadal trends in Arctic climate. (external link)
• Svendsen, Lea (2023). Pacific influence on Arctic Climate on decadal timescales. (external link)
• Dörr, Jakob Simon; Årthun, Marius; Eldevik, Tor et al. (2023). Arctic sea ice variability and retreat. (external link)
• Dörr, Jakob Simon; Bonan, David; Årthun, Marius et al. (2023). Forced and internal components of observed Arctic sea ice changes. (external link)
• Chandra, Ashneel; Keenlyside, Noel Sebastian; Svendsen, Lea et al. (2022). Processes driving changes of heat in the upper equatorial Indian Ocean. (external link)
• Svendsen, Lea (2022). NorCPM and Attributing Model Biases. (external link)
• Svendsen, Lea; Rodriguez-Fonseca, Belén (2022). Tropical atmospheric response of Atlantic Niños to changes in the ocean background state. (external link)
• Svendsen, Lea; Kosaka, Yu; Taguchi, Bunmei (2022). Pacific contribution to multidecadal variability in the Arctic: A multi-model intercomparison. (external link)
• Svendsen, Lea; Kosaka, Yu; Taguchi, Bunmei (2020). Pacific versus Atlantic Contributions to Multidecadal Variability in the Arctic: A Multi-Model Intercomparison. (external link)
• Svendsen, Lea (2020). Climate Variability and Change: Why we need long coupled reanalyses. (external link)
• Wang, Yiguo; Counillon, Francois; Keenlyside, Noel et al. (2019). Seasonal predictions initialised by assimilating SST data with the EnKF. (external link)
• Svendsen, Lea; Keenlyside, Noel; Kosaka, Yu et al. (2019). Pacific contribution to decadal temperature trends in the Arctic during the 20th century. (external link)
• Svendsen, Lea (2019). Pacific impact on decadal surface temperature trends in the Arctic. (external link)
• Svendsen, Lea; Counillon, Francois; Keenlyside, Noel et al. (2018). Seasonal prediction skill in the tropical Atlantic using anomaly coupling. (external link)
• Svendsen, Lea (2018). Pacific decadal variability and Arctic temperature trends. (external link)
• Svendsen, Lea (2018). Pacific impact on Arctic surface temperature trends. (external link)
• Svendsen, Lea; Luo, Feifei; Li, ShuangLin et al. (2018). Atlantic multi-decadal variability and the Indian summer monsoon in CMIP5 models. (external link)
• Keenlyside, Noel; Demissie, Teferi Dejene; Koseki, Shunya et al. (2018). Tropical Atlantic model error and regional projections of climate change. (external link)
• Svendsen, Lea; Keenlyside, Noel; Bethke, Ingo et al. (2018). Pacific contribution to the early 20th century warming in the Arctic. (external link)
• Svendsen, Lea; Keenlyside, Noel; Bethke, Ingo et al. (2017). Pacific contribution to the early 20th century warming in the Arctic. (external link)
• Svendsen, Lea; Keenlyside, Noel; Bethke, Ingo et al. (2017). Pacific contribution to the early 20th century warming in the Arctic. (external link)
• Svendsen, Lea; Luo, Fei-Fei; Sankar, Syam et al. (2016). External forcing as a source for the observed multi-decadal relation between AMV and the Indian summer monsoon. (external link)
• Svendsen, Lea; Luo, Fei-Fei; Sankar, Syam et al. (2016). The link between Atlantic multi-decadal variability and the Indian summer monsoon. (external link)
• Svendsen, Lea; Keenlyside, Noel; Bethke, Ingo et al. (2015). Investigating the role of the Atlantic and Pacific in the early 20th century warming. (external link)
• Svendsen, Lea; Rodriguez-Fonseca, Belén (2015). Influence of an Atlantic Niño on the Indian summer Monsoon. (external link)
• Svendsen, Lea; Keenlyside, Noel; Gao, Yongqi et al. (2015). The Indian Summer Monsoon and Atlantic Multi-decadal variability. (external link)
• Svendsen, Lea; Keenlyside, Noel; Gao, Yongqi et al. (2014). The influence of Atlantic multi-decadal variability on the Indian summer monsoon. (external link)
• Svendsen, Lea; Kvamstø, Nils G; Keenlyside, Noel (2013). Weakening AMOC connects Equatorial Atlantic and Pacific interannual variability. (external link)
• Svendsen, Lea; Kvamstø, Nils Gunnar; Keenlyside, Noel (2013). Weakening AMOC connects Equatorial Atlantic and Pacific interannual variability. (external link)
• Svendsen, Lea; Keenlyside, Noel; Hetzinger, Steffen et al. (2013). Multi-decadal variability in Atlantic SST and Indian Summer Monsoon Rainfall in proxy records. (external link)
• Svendsen, Lea; Kvamstø, Nils G; Keenlyside, Noel (2013). Weakening AMOC connects equatorial Atlantic and Pacific interannual variability. (external link)
• Svendsen, Lea (2013). Atlantic multi-decadal variability and the connection to ISMR. (external link)

Interview

• Ursin, Lars; Svendsen, Lea (2025). Økende bekymringer for endringer i store klimasystemer. (external link)
• Sollund, Adrian; Svendsen, Lea (2025). Meteorolog: Charterstedene som er farlige. (external link)
• Nerdrum, Christian C.; Svendsen, Lea (2024). Klimaforsker: – 75 prosent sjanse for La Niña. (external link)
• Brustad, Line; Svendsen, Lea (2024). Utviklingen snur ikke. (external link)
• Brustad, Line; Svendsen, Lea (2024). Kan gi mer nedbør. (external link)
• Langeland, Solfrid; Svendsen, Lea (2024). Klimavarsling #uibforklart. (external link)
• Flugstad, Eirik; Svendsen, Lea (2023). P2 Pulsen: El Nino og globale temperatura rekorder. (external link)
• Brustad, Line; Svendsen, Lea (2023). Rekonstruert El Niño overrasker. (external link)
• Ringen, Lars Erik Ertzgaard; Svendsen, Lea (2023). Studio 2: El Niño og vinterværet. (external link)
• Brustad, Line; Svendsen, Lea (2023). Ingenting vi har sett før. (external link)
• Tarjem, Guro; Svendsen, Lea (2023). Abels Tårn: El Nino. (external link)
• Ulltang, Synne; Svendsen, Lea (2023). Vinteren i år kan bli kaldare og tørrare, men veit du kvifor?. (external link)
• Svendsen, Lea (2022). Det er utslippene våre som er årsaken. (external link)
• Fløttum, Kjersti; Svendsen, Lea; Viste, Ellen Marie (2019). Blir klimaet bedre om vi snakker norsk? PODCAST. (external link)
• Svendsen, Lea (2016). Atlanterhavets påvirkning på globalt klima. (external link)
• Svendsen, Lea (2016). Atlanterhavets påvirkning på globalt klima. (external link)

Lecture

• Svendsen, Lea (2025). Climate Services and co-production. (external link)
• Svendsen, Lea (2025). The Norwegian Research School for Climate-Informed innovation and decision-making. (external link)
• Svendsen, Lea (2024). Varmt – El Niño og varmerekorder. (external link)
• Svendsen, Lea (2023). Termgruppe for klimafaget: hvorfor og hvordan. (external link)
• Svendsen, Lea (2023). Vilt og vått, men ikkje vakkert! - Ein prat om fysikken bak klimaendringane. (external link)
• Svendsen, Lea (2022). Når verden blir varmere. (external link)
• Svendsen, Lea (2022). Klima nå og i morgen. (external link)
• Svendsen, Lea (2022). Midt i global oppvarming. (external link)
• Svendsen, Lea; Pilskog, Ingjald (2022). Termgruppe for Klimafaget. (external link)
• Svendsen, Lea (2022). In the middle of global warming. (external link)
• Svendsen, Lea (2022). Paneldeltaker på Bærekraftsbrunsj. (external link)
• Svendsen, Lea (2019). Forced and Natural Variability in the Arctic. (external link)
• Svendsen, Lea (2019). Monsoon Variability and Change. (external link)
• Svendsen, Lea (2018). Stillehavets påvirkning på Arktis. (external link)
• Svendsen, Lea (2018). Arktis blir varmere: en kombinasjon av naturlige variasjoner of eksterne strålingspådrivere. (external link)
• Svendsen, Lea (2016). Etter et år med globale temperaturrekorder: hva skjer nå?. (external link)

Academic article

• Wang, Yiguo; Counillon, Francois Stephane; Svendsen, Lea et al. (2025). An ensemble-based coupled reanalysis of the climate from 1860 to the present (CoRea1860+). (external link)
• Chandra, Ashneel; Keenlyside, Noel Sebastian; Svendsen, Lea et al. (2024). Processes Driving Subseasonal Variations of Upper Ocean Heat Content in the Equatorial Indian Ocean. (external link)
• Svendsen, Lea; Rodríguez-Fonseca, Belén; Mohino, Elsa et al. (2023). Tropical Atmospheric Response of Atlantic Niños to Changes in the Ocean Background State. (external link)
• Dörr, Jakob Simon; Bonan, David; Årthun, Marius et al. (2023). Forced and internal components of observed Arctic sea-ice changes. (external link)
• Simmonds, Emily Grace; Adjei, Kwaku Peprah; Andersen, Christoffer Wold et al. (2022). Insights into the quantification and reporting of model-related uncertainty across different disciplines. (external link)
• Crespo, Lander Rodriguez; Prigent, Arthur; Keenlyside, Noel Sebastian et al. (2022). Weakening of the Atlantic Niño variability under global warming. (external link)
• Svendsen, Lea; Keenlyside, Noel; Muilwijk, Morven et al. (2021). Pacific contribution to decadal surface temperature trends in the Arctic during the twentieth century. (external link)
• Bethke, Ingo; Wang, Yiguo; Counillon, Francois Stephane et al. (2021). NorCPM1 and its contribution to CMIP6 DCPP. (external link)
• Yan, Youfang; Svendsen, Lea; Wang, Chunzai et al. (2019). A North-South Contrast of Subsurface Salinity Anomalies in the Northwestern Pacific From 2002 to 2013. (external link)
• Wang, Yiguo; Counillon, Francois; Keenlyside, Noel et al. (2019). Seasonal predictions initialised by assimilating sea surface temperature observations with the EnKF. (external link)
• Luo, Feifei; Li, Shuanglin; Gao, Yongqi et al. (2018). The connection between the Atlantic Multidecadal Oscillation and the Indian Summer Monsoon since the Industrial Revolution is intrinsic to the climate system. (external link)
• Svendsen, Lea; Keenlyside, Noel; Bethke, Ingo et al. (2018). Pacific contribution to the early twentieth-century warming in the Arctic. (external link)
• Luo, Feifei; Li, Shuanglin; Gao, Yongqi et al. (2017). The connection between the Atlantic Multidecadal Oscillation and the Indian Summer Monsoon in the CMIP5 models. (external link)
• Han, Zhe; Luo, Feifei; Li, Shuanglin et al. (2016). Simulation by CMIP5 models of the Atlantic Multidecadal Oscillation and its climate impacts. (external link)
• Sankar, Syam; Svendsen, Lea; Gokulapalan, Bindu et al. (2016). The relationship between Indian summer monsoon rainfall and Atlantic multidecadal variability over the last 500 years. (external link)
• Svendsen, Lea; Hetzinger, Steffen; Keenlyside, Noel et al. (2014). Marine-based multiproxy reconstruction of Atlantic multidecadal variability. (external link)
• Svendsen, Lea; Kvamstø, Nils G; Keenlyside, Noel (2013). Weakening AMOC connects Equatorial Atlantic and Pacific interannual variability. (external link)

Poster

• Chandra, Ashneel; Keenlyside, Noel Sebastian; Svendsen, Lea et al. (2022). INTRASEASONAL OCEAN HEAT CONTENT VARIATIONS IN THE TROPICAL INDIAN OCEAN. (external link)
• Svendsen, Lea; Kosaka, Y.; Taguchi, Bunmei (2022). Pacific contributions to multidecadal variability in the Arctic: A multi-model intercomparison. (external link)
• Svendsen, Lea; Keenlyside, Noel Sebastian; Muilwijk, Morven et al. (2022). Pacific contribution to decadal surface temperature trends during the 20th century. (external link)
• Chandra, Ashneel; Keenlyside, Noel Sebastian; Svendsen, Lea et al. (2021). Intraseasonal variations of Ocean Heat Content in the tropical Indian and Pacific Ocean. (external link)
• Svendsen, Lea; Keenlyside, Noel; Bethke, Ingo et al. (2018). Pacific contribution to the early 20th century warming in the Arctic. (external link)
• Wang, Yiguo; Counillon, Francois; Keenlyside, Noel et al. (2018). Seasonal-to-decadal prediction with the Norwegian Climate Prediction Model. (external link)
• Counillon, Francois; Keenlyside, Noel; Koseki, Shunya et al. (2018). Relating model bias and prediction skill in the tropical Atlantic. (external link)
• Svendsen, Lea; Keenlyside, Noel; Bethke, Ingo et al. (2016). Investigating the Role of the Atlantic and Pacific in the Early 20th Century Warming. (external link)
• Svendsen, Lea; Rodriguez-Fonseca, Belén; Keenlyside, Noel et al. (2016). Does the impact of Atlantic Niños on the Indian summer monsoon depend on the background state?. (external link)
• Svendsen, Lea; Hetzinger, Steffen; Keenlyside, Noel et al. (2014). Marine-based multiproxy reconstruction of Atlantic multidecadal variability. (external link)
• Svendsen, Lea; Hetzinger, Steffen; Keenlyside, Noel et al. (2013). Marine-based multi-proxy reconstruction of Atlantic multi-decadal variability. (external link)
• Svendsen, Lea; Kvamstø, Nils G; Keenlyside, Noel (2013). Weakening AMOC connects Equatorial Atlantic and Pacific interannual variability. (external link)
• Svendsen, Lea; Kvamstø, Nils G; Keenlyside, Noel (2012). Simulated response of the El Niño-Southern Oscillation to a weakening Atlantic meridional overturning circulation in the Bergen Climate Model. (external link)

Academic chapter/article/Conference paper

• Svendsen, Lea (2021). Atlantic multidecadal oscillation and Indian Summer Monsoon Variability: A revisit. (external link)
• Eldevik, Tor; Smedsrud, Lars Henrik; Li, Camille et al. (2020). The Arctic Mediterranean. (external link)

Programme participation

• Hirth, Martin; Svendsen, Lea (2020). Energi og Klima podcast. (external link)
• Hirth, Martin; Svendsen, Lea (2020). Energi og Klima podcast. (external link)
• Hirth, Martin; Svendsen, Lea (2020). Energi og Klima podcast. (external link)
• Hirth, Martin; Svendsen, Lea (2020). Energi og Klima podcast. (external link)
• Pilskog, Ingjald; Viste, Ellen; Fløttum, Kjersti et al. (2019). Blir klimaet bedre om vi snakker norsk?. (external link)

Performing Arts

• Svendsen, Lea (2020). Neste Steg. Klima: Menneskets tidsalder. (external link)

Popular scientific article

• Svendsen, Lea (2020). Hva gjør La Niña med været?. (external link)

Doctoral dissertation

• Svendsen, Lea; Keenlyside, Noel; Gao, Yongqi (2016). Impacts of Atlantic multi-decadal variability on the Indo-Pacific and Northern Hemisphere climate. (external link)

See a complete overview of publications in Cristin.