A5078713309- Climate variability and models
- Meteorological Phenomena and Simulations
- Oceanographic and Atmospheric Processes
- Geophysics and Gravity Measurements
- Atmospheric and Environmental Gas Dynamics
- Tropical and Extratropical Cyclones Research
- Climate change and permafrost
- Arctic and Antarctic ice dynamics
- Hydrology and Watershed Management Studies
- Blood transfusion and management
- Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
- Renal and related cancers
- Coastal and Marine Dynamics
- Vitamin C and Antioxidants Research
- Underwater Acoustics Research
- Organ Donation and Transplantation
- Corneal Surgery and Treatments
- Ocean Acidification Effects and Responses
- Cryospheric studies and observations
- Blood donation and transfusion practices
- Ocular Surface and Contact Lens
- Water-Energy-Food Nexus Studies
- Biomedical Ethics and Regulation
- Pancreatic and Hepatic Oncology Research
- Respiratory and Cough-Related Research
University of Oxford
2002-2025
University of Exeter
2017-2023
University of South Florida
2020
Met Office
2017
Royal Alexandra Hospital
2004
Scottish National Blood Transfusion Service
1997-2002
London School of Hygiene & Tropical Medicine
2002
Royal Hospital for Children
1997
University of Edinburgh
1997
National Blood Transfusion Service
1996
Abstract There is large uncertainty in the future regional sea level change under anthropogenic climate change. Our study presents and uses a novel design of ocean general circulation model (OGCM) experiments to investigate ocean's response surface buoyancy momentum flux perturbations without atmosphere‐ocean feedbacks (e.g., restoring or bulk formulae), as part Flux‐Anomaly‐Forced Model Intercomparison Project (FAFMIP). In an ensemble OGCMs forced with identical perturbations, simulated...
Abstract Sea levels of different atmosphere–ocean general circulation models (AOGCMs) respond to climate change forcing in ways, representing a crucial uncertainty research. We isolate the role ocean dynamics setting spatial pattern dynamic sea-level ( ζ ) by several AOGCMs with prescribed identical heat, momentum (wind) and freshwater flux perturbations. This method produces projection spread comparable magnitude that results from greenhouse gas forcing, indicating differences model...
ABSTRACT Changes in “blue water”, which is the total supply of fresh water available for human extraction over land, are quite closely related to changes runoff or equivalently precipitation minus evaporation, . This article examines how climate change‐driven recent past and future regional cycle relate blue availability demand. Although at largest scales theoretical numerical model predictions broad agreement with observations, continental below models predict large ranges possible...
Abstract Large uncertainty remains in future projections of tropical precipitation change under global warming. A simplified method for diagnosing is tested here on present-day El Niño–Southern Oscillation (ENSO) shifts. This method, based the weak temperature gradient approximation, assumes associated with local surface relative humidity (RH) and air (SAT), to mean. Observed simulated changes RH SAT are subsequently used diagnose precipitation. Present-day ENSO shifts successfully diagnosed...
Abstract Projections of future West African monsoon (WAM) precipitation change in response to increasing greenhouse gases are uncertain, and an improved understanding the drivers WAM is needed help aid model development better inform adaptation policies region. This paper addresses one those drivers, direct radiative effect increased CO 2 (i.e., impact absence SST warming changes plant physiology). An atmosphere-only used examine both equilibrium evolution over days following instantaneous...
Abstract. This paper presents an investigation of the robustness correlations between characteristics Arctic summer cyclones and September sea ice extent. A cyclone identification tracking algorithm is run for output from 100-year coupled climate model simulations at two resolutions 30 years reanalysis data, using different variables (mean sea-level pressure, MSLP; 850 hPa vorticity) cyclones. The influence variable, spatial resolution model, temporal sampling on then explored. We conclude...
Abstract Projections of West African Monsoon (WAM) precipitation are uncertain. To address this, an improved understanding the mechanisms driving WAM change is needed to shed light on inter-model differences and aid model development. The full forcing increased CO 2 can be decomposed into different components such as impact ocean warming, or direct radiative effect . This paper investigates a decomposition, analysing uniform 4K warming whilst keeping atmospheric concentrations constant....
There is large uncertainty in the future sea level change at regional scales under anthropogenic global warming. This study uses a novel design of ocean-only general circulation model (OGCM) experiments to investigate ocean’s response surface buoyancy and momentum flux perturbations, as part Flux-Anomaly-Forced Model Intercomparison Project (FAFMIP), compares with results from coupled, atmosphere-ocean GCM (AOGCM) experiments. Much inter-model spread driven by heat perturbations. In...
<p>A rise in global mean sea level is a robust feature of projected anthropogenic climate change using state-of-the-art atmosphere-ocean general circulation models (AOGCMs). However, there considerable disagreement over the more policy-relevant regional patterns rise. The Flux-Anomaly-Forced Model Intercomparison Project (FAFMIP) aims to improve our understanding mechanisms controlling and dynamic change. In FAFMIP, identical air-sea buoyancy momentum flux perturbations are...
Abstract. This paper presents an analysis of Arctic summer cyclones in a climate model and reanalysis dataset. A cyclone identification tracking algorithm is run for output from simulations at two resolutions, the reanalysis, using different variables (mean sea-level pressure 850 hPa vorticity) cyclones. Correlations between characteristics September sea ice extent are investigated, influence variable, spatial resolution model, temporal sampling, on correlations explored. We conclude that...