Rachel Killick
A5011022877- Climate variability and models
- Atmospheric and Environmental Gas Dynamics
- Oceanographic and Atmospheric Processes
- Meteorological Phenomena and Simulations
- Climate Change and Health Impacts
- Geology and Paleoclimatology Research
- Marine and coastal ecosystems
- Arctic and Antarctic ice dynamics
- Cryospheric studies and observations
- Hydrology and Drought Analysis
- Geophysics and Gravity Measurements
- Integrated Energy Systems Optimization
- Geological and Geophysical Studies
- Arctic and Russian Policy Studies
- Hydrological Forecasting Using AI
- Atmospheric chemistry and aerosols
- Image Retrieval and Classification Techniques
- Music and Audio Processing
- Economic and Technological Developments in Russia
- Calibration and Measurement Techniques
- Hydrocarbon exploration and reservoir analysis
- Energy Efficiency and Management
- Radiomics and Machine Learning in Medical Imaging
- Medical Imaging Techniques and Applications
- Global Energy and Sustainability Research
Met Office
2018-2024
University of Exeter
2018-2021
Phillips Exeter Academy
2018-2019
Abstract We present a new version of the Met Office Hadley Centre/Climatic Research Unit global surface temperature data set, HadCRUT5. HadCRUT5 presents monthly average near‐surface anomalies, relative to 1961–1990 period, on regular 5° latitude by longitude grid from 1850 2018. is combination sea‐surface (SST) measurements over ocean ships and buoys air weather stations land surface. These have been sourced updated compilations adjustments applied mitigate impact changes in SST measurement...
Abstract. Human-induced atmospheric composition changes cause a radiative imbalance at the top of atmosphere which is driving global warming. This Earth energy (EEI) most critical number defining prospects for continued warming and climate change. Understanding heat gain system – particularly how much where distributed fundamental to understanding this affects ocean, land; rising surface temperature; sea level; loss grounded floating ice, are concerns society. study Global Climate Observing...
Abstract One of the largest sources uncertainty in estimates global temperature change is that associated with correction systematic errors sea surface (SST) measurements. Despite recent work to quantify and reduce these throughout historical record, differences between analyses remain larger than can be explained by estimated uncertainties. We revisited method used estimate their uncertainties version 3 Met Office Hadley Centre SST data set, HadSST. Using comparisons oceanographic profiles,...
The energy radiated by the Earth towards space does not compensate incoming radiation from Sun leading to a small positive imbalance at top of atmosphere (0.4-1.Wm-2). This is coined Earth's Energy Imbalance (EEI). It mostly caused anthropogenic greenhouse gases emissions and driving current warming planet. Precise monitoring EEI critical assess status climate change future evolution climate. But challenging as two order magnitude smaller than fluxes in out Earth. Over 93% excess that gained...
Abstract. Intergovernmental Panel on Climate Change (IPCC) assessments are the trusted source of scientific evidence for climate negotiations taking place under United Nations Framework Convention (UNFCCC), including first global stocktake Paris Agreement that will conclude at COP28 in December 2023. Evidence-based decision-making needs to be informed by up-to-date and timely information key indicators state system human influence system. However, successive IPCC reports published intervals...
Abstract. The Earth climate system is out of energy balance, and heat has accumulated continuously over the past decades, warming ocean, land, cryosphere, atmosphere. According to Sixth Assessment Report by Working Group I Intergovernmental Panel on Climate Change, this planetary multiple decades human-driven results in unprecedented committed changes system, with adverse impacts for ecosystems human systems. inventory provides a measure imbalance (EEI) allows quantifying how much as well...
Abstract. Intergovernmental Panel on Climate Change (IPCC) assessments are the trusted source of scientific evidence for climate negotiations taking place under United Nations Framework Convention (UNFCCC). Evidence-based decision-making needs to be informed by up-to-date and timely information key indicators state system human influence global system. However, successive IPCC reports published at intervals 5–10 years, creating potential an gap between report cycles. We follow methods as...
Abstract Earth’s energy imbalance (EEI) is a fundamental metric of global Earth system change, quantifying the cumulative impact natural and anthropogenic radiative forcings feedback. To date, most precise measurements EEI change are obtained through radiometric observations at top atmosphere (TOA), while quantification absolute magnitude facilitated heat inventory analysis, where ~ 90% uptake manifests as an increase in ocean content (OHC). Various international groups provide OHC datasets...
Abstract Global mean near surface temperature change is the key metric by which our warming climate monitored and for international policy set. At end of each year Met Office issues a global forecast coming year. Following on from new record in 2023, we predict that 2024 will likely (76% chance) be with 1‐in‐3 chance exceeding 1.5°C above pre‐industrial. Whilst one‐year temporary exceedance would not constitute breach Paris Agreement target, highlights how close are now to this. Our...
Ocean temperature observations are crucial for a host of climate research and forecasting activities, such as monitoring, ocean reanalysis state estimation, seasonal-to-decadal forecasts, forecasting. For all these applications, it is to understand the uncertainty attached each observations, accounting changes in instrument technology observing practices over time. Here, we describe rationale behind specification provided situ International Quality-controlled Database (IQuOD) v0.1,...
Abstract Observational estimates of global ocean heat content (OHC) change are used to assess Earth’s energy imbalance over the 20th Century. However, intercomparison studies show that mapping methods interpolate sparse temperature profile data a key source uncertainty. We present new approach assessing OHC using ‘synthetic profiles’ generated from state-of-the-art climate model simulation. Synthetic profiles have same sampling characteristics as historical but based on simulation data....
Abstract Day-to-day variations in surface air temperature affect society many ways, but daily measurements are not available everywhere. Therefore, a global picture cannot be achieved with made situ alone and needs to incorporate estimates from satellite retrievals. This article presents the science developed EU Horizon 2020–funded EUSTACE project (2015–19, www.eustaceproject.org ) produce European multidecadal ensembles of analyses complementary those dynamical reanalyses, integrating...
Abstract. Intergovernmental Panel on Climate Change (IPCC) assessments are the trusted source of scientific evidence for climate negotiations taking place under United Nations Framework Convention (UNFCCC), including first global stocktake Paris Agreement that will conclude at COP28 in December 2023. Evidence-based decision making needs to be informed by up-to-date and timely information key indicators state system human influence system. However, successive IPCC reports published intervals...
Abstract. Intergovernmental Panel on Climate Change (IPCC) assessments are the trusted source of scientific evidence for climate negotiations taking place under United Nations Framework Convention (UNFCCC). Evidence-based decision-making needs to be informed by up-to-date and timely information key indicators state system human influence global system. However, successive IPCC reports published at intervals 5–10 years, creating potential an gap between report cycles. We follow methods as...
Abstract. The Earth climate system is out of energy balance and heat has accumulated continuously over the past decades, warming ocean, land, cryosphere atmosphere. According to 6th Assessment Report Intergovernmental Panel on Climate Change, this planetary multiple decades human-driven results in unprecedented committed changes system, with adverse impacts for ecosystems human systems. inventory provides a measure imbalance, allows quantifying how much where stored. Here we show that 380 ±...
Abstract This paper describes a new homogenization algorithm validation methodology, and its use to assess the skill of eight different algorithms, when applied synthetic daily temperature time series. These algorithms were ACMANT, Climatol (in both monthly configurations), DAP, HOM, MAC‐D, MASH SpliDHOM. Algorithms tested on benchmark data replicating variability in four regions North America: Wyoming, South East, East West. benchmarks contained plausible spatial temporal correlation,...
Abstract Realistic ocean state prediction and its validation rely on the availability of high quality in situ observations. To detect data errors, adequate check procedures must be designed. This paper presents that take advantage ever-growing observation databases provide climatological knowledge variability neighborhood an location. Local validity intervals are used to estimate binarily whether observed values considered as good or erroneous. Whereas a classical approach estimates bounds...
WeatherVolume 74, Issue 10 p. 332-340 Research Article Global and regional climate in 2018 John J. Kennedy, Corresponding Author john.kennedy@metoffice.gov.uk Met Office, Hadley Centre, ExeterCorrespondence to: john.kennedy@metoffice.gov.ukSearch for more papers by this authorRachel E. Killick, ExeterSearch authorRobert Dunn, authorMark P. McCarthy, National Climate Information authorColin Morice, authorNick A. Rayner, authorHolly Titchner, author First published: 11 October 2019...