A5082987737- Climate variability and models
- Atmospheric and Environmental Gas Dynamics
- Meteorological Phenomena and Simulations
- Tropical and Extratropical Cyclones Research
- Plant Water Relations and Carbon Dynamics
- Climate change and permafrost
- Peatlands and Wetlands Ecology
- Soil Geostatistics and Mapping
- Hydrology and Watershed Management Studies
- Geophysics and Gravity Measurements
- Climate Change Policy and Economics
- Cryospheric studies and observations
- Soil Carbon and Nitrogen Dynamics
- Climate change impacts on agriculture
- demographic modeling and climate adaptation
- Flood Risk Assessment and Management
- Earthquake Detection and Analysis
- Marine and coastal ecosystems
- GNSS positioning and interference
- Conservation, Biodiversity, and Resource Management
- Oceanographic and Atmospheric Processes
- Forest Management and Policy
- Geological Studies and Exploration
- Climate Change and Environmental Impact
- Environmental Conservation and Management
Environment and Climate Change Canada
2019-2024
Queen's University
2023-2024
Climate Centre
2023
University of Victoria
2014-2021
Pacific Institute for Climate Solutions
2016-2019
Wageningen University & Research
2010-2015
Universidad Privada de Santa Cruz de la Sierra
2014-2015
<strong class="journal-contentHeaderColor">Abstract.</strong> The Canadian Earth System Model version 5 (CanESM5) is a global model developed to simulate historical climate change and variability, make centennial-scale projections of future climate, produce initialized seasonal decadal predictions. This paper describes the components their coupling, as well various aspects development, including tuning, optimization, reproducibility strategy. We also document stability using long control...
Abstract The Global Carbon Project estimates that the terrestrial biosphere has absorbed about one‐third of anthropogenic CO 2 emissions during 1959–2019 period. This sink‐estimate is produced by an ensemble models and consistent with land uptake inferred from residual ocean uptake. purpose our study to understand how well reproduce processes drive carbon sink. One challenge decide what level agreement between model output observation‐based reference data adequate considering are prone...
Abstract Purpose of Review This review brings together recent research on the structure, characteristics, dynamics, and impacts extratropical cyclones in future. It draws using idealized models complex climate simulations, to evaluate what is known unknown about these future changes. Recent Findings There are interacting processes that contribute uncertainties cyclone changes, e.g., changes horizontal vertical structure atmosphere increasing moisture content due rising temperatures. Summary...
Abstract. The Canadian Earth System Model version 5 (CanESM5) is a global model developed to simulate historical climate change and variability, make centennial scale projections of future climate, produce initialized seasonal decadal predictions. This paper describes the components their coupling, as well various aspects development, including tuning, optimization reproducibility strategy. We also document stability using long control simulation, quantify model's ability reproduce large...
Abstract. Recent reports by the Global Carbon Project highlight large uncertainties around land surface processes such as use change, strength of CO2 fertilization, nutrient limitation and supply, response to variability in climate. Process-based models are well suited address these complex emerging global change problems but will require extensive development evaluation. The coupled Canadian Land Surface Scheme Terrestrial Ecosystem Model (CLASS-CTEM) framework has been under continuous...
Abstract Climate-related disasters in Bolivia are frequent, severe, and manifold affect large parts of the population, economy, ecosystems. Potentially amplified through climate change, natural hazards growing concern. To better understand these events, homogenized daily observations temperature (29 stations) precipitation (68 from 1960 to 2009 were analyzed this study. The impact positive (+) negative (−) phases three modes (i) Pacific decadal oscillation (PDO), (ii) El Niño–Southern...
A strong atmospheric river made landfall in southwestern British Columbia, Canada on November 14th, 2021, bringing two days of intense precipitation to the region. The resulting floods and landslides led loss at least five lives, cut Vancouver off entirely from rest by road rail, this costliest natural disaster province's history. Here we show that when characterised terms storm-averaged water vapour transport, variable typically used characterise intensity rivers, westerly events magnitude...
Abstract. Terrestrial carbon (C) sequestration is limited by nitrogen (N), an empirically established constraint that could intensify under CO2 fertilization and future global change. The terrestrial C sink estimated to currently sequester approximately a third of annual anthropogenic emissions based on ensemble biosphere models, which have been evaluated in their ability reproduce observations the C, water, energy cycles. However, N cycling thus regulation largely unexplored. Here, we...
Abstract. The Canadian Earth System Model version 5 (CanESM5) developed at Environment and Climate Change Canada's Centre for Modelling Analysis (CCCma) is participating in phase 6 of the Coupled Intercomparison Project (CMIP6). A 40-member ensemble CanESM5 retrospective decadal forecasts (or hindcasts) integrated 10 years from realistic initial states once a year during 1961 to present using prescribed external forcing. results are part CCCma's contribution Decadal Prediction (DCPP)...
Abstract. The Canadian Earth System Model version 5.0 (CanESM5.0), the most recent major of global climate model developed at Centre for Climate Modelling and Analysis (CCCma) Environment Change Canada (ECCC), has been used extensively in research providing future projections context services. Previous studies have shown that CanESM5.0 performs well compared to other models revealed several biases. To address these biases, CCCma recently initiated “Analysis Development” (A4D) activity, a...
Abstract Bolivia is facing numerous climate-related threats, ranging from water scarcity due to rapidly retreating glaciers in the Andes a partial loss of Amazon forest lowlands. To assess what changes climate may be expected future, 35 global circulation models (GCMs) third and fifth phases Coupled Model Intercomparison Project (CMIP3/5) were analyzed for Bolivian case. GCMs validated against observed surface air temperature, precipitation, incoming shortwave (SW) radiation period 1961–90....
Abstract Bolivia's forests contribute to the global carbon and water cycle, as well biodiversity. The survival of these may be at risk due climate change. To explore associated mechanisms uncertainties, a regionally adapted dynamic vegetation model was implemented for Bolivian case, forced with two contrasting change projections. Changes in stocks fluxes were evaluated, factoring out individual contributions atmospheric dioxide ([CO 2 ]), temperature, precipitation. Impacts ranged from...
Abstract. Quantification of uncertainty in fluxes energy, water, and CO2 simulated by land surface models (LSMs) remains a challenge. LSMs are typically driven with, tuned for, specified meteorological forcing data set geophysical fields. Here, using two sets each for cover representation (in which the increase crop area over historical period is implemented same way), as well model structures (with without coupling carbon nitrogen cycles), results quantified Canadian Land Surface Scheme...
Abstract Canada's boreal forests and tundra ecosystems are responding to unprecedented climate change with implications for the global carbon (C) cycle climate. However, our ability model response of terrestrial is limited there has been no comprehensive, process‐based assessment C cycle. We tailor Canadian Land Surface Scheme Including Biogeochemical Cycles (CLASSIC) Canada evaluate its cycling performance against independent reference data. utilize skill scores assess data alongside...
Abstract Dynamic vegetation models have been used to assess the resilience of tropical forests climate change, but global application these modeling experiments often misrepresents carbon dynamics at a regional level, limiting validity future projections. Here dynamic model (Lund Potsdam Jena General Ecosystem Simulator) was adapted simulate present‐day potential as baseline for change impact assessments in evergreen and deciduous Bolivia. Results were compared biomass measurements (819...
Extratropical cyclones (ETCs) are known to intensify due three vertically interacting positive potential vorticity perturbations that associated with temperature anomalies close the surface (θB), condensational heating in lower-level atmosphere (qsat), and stratospheric intrusion upper-level (qtr). This study presents first climatological assessment of how much each these mechanisms contributes intensity extreme ETCs. Using relative at 850 hPa as a measure ETC intensity, results show about...
Abstract. The Canadian Land Surface Scheme Including Biogeochemical Cycles (CLASSIC) is an open-source community model designed to address research questions that explore the role of land surface in global climate system. Here, we evaluate how well CLASSIC reproduces energy, water, and carbon cycle when forced with quasi-observed meteorological data. Model skill scores summarize output agrees observation-based reference data across multiple statistical metrics. A lack agreement may be due...
Abstract. Recent reports by the Global Carbon Project highlight large uncertainties around land surface processes such as use change, strength of CO2 fertilization, nutrient limitation and supply, response to variability in climate. Process-based models are well-suited address these complex emerging global change problems, but will require extensive development evaluation. The coupled Canadian Land Surface Scheme Terrestrial Ecosystem Model (CLASS-CTEM) framework has been under continuous...
Abstract. The Canadian Land Surface Scheme Including Biogeochemical Cycles (CLASSIC) is an open source community model designed to address research questions that explore the role of land surface in global climate system. Here we evaluate how well CLASSIC reproduces energy, water, and carbon cycle when forced with quasi-observed meteorological data. Model skill scores summarize output agrees observation-based reference data across multiple statistical metrics. A lack agreement may be due...
Abstract Spatial estimates of actual evapotranspiration are useful for calculating the water balance river basins, quantifying hydrological services provided by ecosystems, and assessing impacts land-use practices. To provide this information, authors estimate in central Bolivia with a remote sensing algorithm [Surface Energy Balance Algorithms Land (SEBAL)]. SEBAL was adapted effects topography (particularly elevation, slope, aspect) atmospheric properties on incoming solar radiation....
Abstract Earth System Models (ESMs) project that the terrestrial carbon sink will continue to grow as atmospheric CO 2 increases, but this projection is uncertain due biases in simulated climate and how ESMs represent ecosystem processes. In particular, strength of ‐fertilization effect, which modulated by nutrient cycles, varies substantially across models. This study evaluates land balance uncertainties for Canadian Model (CanESM) conducting simulations where latest version CanESM's...