Climate Scientist, Professor of Atmospheric Sciences at University of Hawaiʻi at Mānoa. El Niño, extremes, paleoclimate, ML/AI in weather and climatehttps://bsky.app/profile/drxtinakar.bsky.socialhttps://bsky.app/profile/drxtinakar.bsky.social/post/3mqppwfb5h22jTraditional Cooling Degree Days ignore how temperature and humidity affect cooling system efficiency. Our new paper introduces effective Cooling Degree Days (eCDD), a thermodynamics-based metric for representing cooling demand. Paper, code, and data are open source. https://www.nature.com/articles/s41467-026-75388-915 Jul 2026 22:01 +0000at://did:plc:q4xlbshe7m4nbdmtca5hethj/app.bsky.feed.post/3mqppwfb5h22jhttps://bsky.app/profile/drxtinakar.bsky.social/post/3mp5hwtkvus2mOur new study examines trends in temperature and humidity conditions that limit the use of air free cooling in data centers. https://www.nature.com/articles/s41598-026-56926-325 Jun 2026 22:25 +0000at://did:plc:q4xlbshe7m4nbdmtca5hethj/app.bsky.feed.post/3mp5hwtkvus2mhttps://bsky.app/profile/drxtinakar.bsky.social/post/3mg46l7hkik2nOpen Postdoctoral Researcher position in our research group at the University of Hawaiʻi (Honolulu). The position focuses on ML/AI model development and analysis for tropical-extratropical weather and climate research. Deadline: March 20. Apply here: tinyurl.com/hrx87fnf02 Mar 2026 21:18 +0000at://did:plc:q4xlbshe7m4nbdmtca5hethj/app.bsky.feed.post/3mg46l7hkik2nhttps://bsky.app/profile/drxtinakar.bsky.social/post/3m7vofeu4sl2uCatch us at #AGU25! We’ll be presenting work spanning ENSO and Coastal El Niño dynamics, paleoclimate, atmospheric blocking/extremes, and heat impacts to people and infrastructure.  Find links to presentations from group members and collaborators here: https://linktr.ee/ckaramp.research13 Dec 2025 22:42 +0000at://did:plc:q4xlbshe7m4nbdmtca5hethj/app.bsky.feed.post/3m7vofeu4sl2uhttps://bsky.app/profile/drxtinakar.bsky.social/post/3llb36wnktc2kI’m honored to have chaired the ENSO Winter School 2025 @uhmanoa.bsky.social, where we brought together bright minds from across the globe to deepen our understanding of El Niño–Southern Oscillation (ENSO) and build invaluable professional networks. https://www.hawaii.edu/news/2025/03/25/enso-winter-school-2025/26 Mar 2025 05:41 +0000at://did:plc:q4xlbshe7m4nbdmtca5hethj/app.bsky.feed.post/3llb36wnktc2khttps://bsky.app/profile/drxtinakar.bsky.social/post/3lei3jdw3dk2oOpen MS/PhD & postdoctoral researcher positions:29 Dec 2024 22:39 +0000at://did:plc:q4xlbshe7m4nbdmtca5hethj/app.bsky.feed.post/3lei3jdw3dk2ohttps://bsky.app/profile/drxtinakar.bsky.social/post/3lei37pvuvk2oSeeking a Postdoctoral Researcher on the topic of ML/AI for climate and weather extremes. Apply here: tinyurl.com/2yksva7b https://tinyurl.com/2yksva7b29 Dec 2024 22:34 +0000at://did:plc:q4xlbshe7m4nbdmtca5hethj/app.bsky.feed.post/3lei37pvuvk2ohttps://bsky.app/profile/drxtinakar.bsky.social/post/3l5fjezu56y2sI am excited to see this study published at Nature Comms Earth & Environment! It uses a deep learning model to infer summertime atmospheric blocking frequencies from seasonally averaged surface temperature reconstructions over the Last Millennium. https://www.nature.com/articles/s43247-024-01687-y30 Sep 2024 20:13 +0000at://did:plc:q4xlbshe7m4nbdmtca5hethj/app.bsky.feed.post/3l5fjezu56y2s