Christoph Renkl
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christophrenkl.org
Christoph Renkl
@christophrenkl.org
Interim Professor @unibonn.bsky.social

Climate Variability and Predictability | Air-Sea Interactions | Coastal and Shelf Ocean Dynamics.

www.christophrenkl.org
The time series above show variations of coastal MDT, alongshore current, and derived quantities on timescales >15 days. Tidal signals are averaged out (we checked that there is no aliasing).
January 28, 2025 at 12:28 PM
This highlights the value of using geodetic MDT estimates for model validation and ocean monitoring, making this study relevant for both the modeling and observation communities. 🌊 (5/5)
January 27, 2025 at 7:04 PM
Combining theory, idealized models, and a regional ocean circulation model, we offer two complementary and dynamically consistent interpretations linking this tilt of MDT to the alongshore current and also to the area-integrated nearshore circulation. (4/5)
January 27, 2025 at 7:04 PM
This includes an alongshore tilt of MDT associated with the Nova Scotia Current that is balanced primarily by wind stress, bottom friction, and a small contribution from lateral mixing. (3/5)
January 27, 2025 at 7:04 PM
MDT (the local height of sea level above the geoid) can be estimated by coastal tide gauge observations in combination with the latest generation of geoid models. These new geodetic estimates can be used to validate MDT predictions by regional high-resolution ocean models. (2/5)
January 27, 2025 at 7:04 PM
On Friday, I will present our recent research on the impact of #MarineHeatwaves on #AtmosphericRiver events. 🌊

Session A52B • Room 152 A • 10:20am - 11:50am
agu.confex.com/agu/agu24/me...
Intensification of Atmospheric Rivers by Marine Heatwaves: Multi-Scale Air-Sea Interaction and Downstream Effects on Coastal and Inland Climate
The climate along the US West Coast is profoundly affected by air-sea interacti...
agu.confex.com
December 9, 2024 at 1:16 AM
On Monday, swing by my poster if you want to chat about S2S #predictability and the ocean response to the #MJO. 🌊

Board 0736, Hall B-C • 1:40pm - 5:30pm
agu.confex.com/agu/agu24/me...
Downscaling the Ocean Response to the Madden-Julian Oscillation in the Northwest Atlantic and Adjacent Shelf Seas
Subseasonal-to-seasonal (S2S) prediction is a global effort to forecast the sta...
agu.confex.com
December 9, 2024 at 1:16 AM
Reposted by Christoph Renkl
Gold wrote a brief BAMS note about this in 1963, in response to a request from Phillips.

He notes that he believes the earliest note was in a glossary of his 1907 paper, where there was some evident advantage in separating the Coriolis component from the centrifugal effect in gradient wind 2/🌊
September 26, 2024 at 2:22 PM
The model also predicts that the atmospheric circulation in response to the MJO leads to anomalous upwelling on the Scotian Shelf. (5/5)
May 7, 2024 at 10:21 AM
The observed relationship between the MJO and North Atlantic SST can be captured by a regional ocean circulation model demonstrating their feasibility and potential for S2S ocean prediction. (4/5)
May 7, 2024 at 10:20 AM
These changes are driven primarily by anomalous air-sea heat fluxes caused by large-scale atmospheric perturbations linked to the MJO. (3/5)
May 7, 2024 at 10:20 AM
Statistically significant large-scale #SST changes in the North #Atlantic, particularly along the eastern seaboard of North America, can be related to the MJO. (2/5)
May 7, 2024 at 10:17 AM