Sandy P Harrison

Dados Biográficos

ID6225201
NOMESandy P Harrison
PRENOMESSandy P
SOBRENOMEHarrison
ASSINATURAHARRISON S P
AFILIAÇÕESUniversity of Reading
ORCID0000-0001-5687-1903
VERIFICADOSim
TOTAL DE OBRAS25
TOTAL DE CITAÇÕES0
TOTAL COMO AUTOR25
TOTAL COMO EDITOR0
PRIMEIRO ANO DE PUBLICAÇÃO1991
ANO MAIS RECENTE DE PUBLICAÇÃO2024
ÍNDICE H0

  • Modelling the daily probability of wildfire occurrence in the contiguous United States

    Open AccessTheodore Keeping, Sandy P Harrison et al.ARTICLEEnvironmental Research Letters2024

    The development of a high-quality wildfire occurrence model is an essential component in mapping present wildfire risk, and in projecting future wildfire dynamics with climate and land-use change. Here, we develop a new model for predicting the daily probability of wildfire occurrence at 0.1° (∼10 km) spatial resolution by adapting a generalised linear modelling (GLM) approach to include improvements to the variable selection procedure, identific…

  • Global environmental controls on wildfire burnt area, size, and intensity

    Open AccessOlivia Haas, I Colin Prentice et al.ARTICLEEnvironmental Research Letters2022

    Fire is an important influence on the global patterns of vegetation structure and composition. Wildfire is included as a distinct process in many dynamic global vegetation models but limited current understanding of fire regimes restricts these models’ ability to reproduce more than the broadest geographic patterns. Here we present a statistical analysis of the global controls of remotely sensed burnt area (BA), fire size (FS), and a derived metr…

  • The impact of methodological decisions on climate reconstructions using WA-PLS

    Open AccessMark G Turner, Dongyang Wei et al.ARTICLEQuaternary Research2021

    Most techniques for pollen-based quantitative climate reconstruction use modern assemblages as a reference data set. We examine the implication of methodological choices in the selection and treatment of the reference data set for climate reconstructions using Weighted Averaging Partial Least Squares (WA-PLS) regression and records of the last glacial period from Europe. We show that the training data set used is important because it determines t…

  • Seasonal temperature and moisture changes in interior semi‐arid Spain from the last interglacial to the Late Holocene

    Open AccessDongyang Wei, Penélope González‐Sampériz et al.ARTICLEQuaternary Research2021

    The El Cañizar de Villarquemado pollen record covers the last part of MIS 6 to the Late Holocene. We use Tolerance-Weighted Averaging Partial Least Squares (TWA-PLS) to reconstruct mean temperature of the coldest month (MTCO) and growing degree days above 0°C (GDD 0 ) and the ratio of annual precipitation to annual potential evapotranspiration (MI), accounting for the ecophysiological effect of changing CO 2 on water-use efficiency. Rapid summer …

  • Understanding and modelling wildfire regimes

    Open AccessSandy P Harrison, I Colin Prentice et al.ARTICLEEnvironmental Research Letters2021

    Recent extreme wildfire seasons in several regions have been associated with exceptionally hot, dry conditions, made more probable by climate change. Much research has focused on extreme fire weather and its drivers, but natural wildfire regimes—and their interactions with human activities—are far from being comprehensively understood. There is a lack of clarity about the ‘causes’ of wildfire, and about how ecosystems could be managed for the co-…

  • Optimality-based modelling of climate impacts on global potential wheat yield

    Open AccessShengchao Qiao, Han Wang et al.ARTICLEEnvironmental Research Letters2021

    Evaluation of potential crop yields is important for global food security assessment because it represents the biophysical ‘ceiling’ determined by variety, climate and ambient CO 2 . Statistical approaches have limitations when assessing future potential yields, while large differences between results obtained using process-based models reflect uncertainties in model parameterisations. Here we simulate the potential yield of wheat across the pres…

  • Vegetation biomass change in China in the 20th century

    Open AccessXiang Song, Fang Li et al.ARTICLEEnvironmental Research Letters2020

    Vegetation biomass is a key and active component of the carbon cycle. Though China’s vegetation biomass in recent decades has been widely investigated, only two studies have quantitatively assessed its century-scale changes so far and reported totally opposite trends. This study provided the first multi-model estimates of China’s vegetation biomass change for the 20th century and its responses to historical changes in environmental and anthropoge…

  • Sisal

    Open AccessLaia Comas‐Bru, Sandy P Harrison et al.ARTICLEQuaternary2019

    Isotopic records from speleothems are an important source of information about past climates and, given the increase in the number of isotope-enabled climate models, are likely to become an important tool for climate model evaluation. SISAL (Speleothem Isotopes Synthesis and Analysis) have created a global database of isotopic records from speleothems in order to facilitate regional analyses and data-model comparison. The papers in this Special I…

  • Enhanced Australian carbon sink despite increased wildfire during the 21st century

    Open AccessDouglas I Kelley, Sandy P HarrisonARTICLEEnvironmental Research Letters2014

    Climate projections show Australia becoming significantly warmer during the 21st century, and precipitation decreasing over much of the continent. Such changes are conventionally considered to increase wildfire risk. Nevertheless, we show that burnt area increases in southern Australia, but decreases in northern Australia. Overall the projected increase in fire is small (0.72–1.31% of land area, depending on the climate scenario used), and does n…

  • Millennial-scale climate variability and vegetation changes during the Last Glacial

    Open AccessMarı́a Fernanda Sánchez Goñi, María Fernanda Sánchez Goñi et al.ARTICLEQuaternary Science Reviews2010

  • Fire in the Earth System

    Open AccessDavid M J S Bowman, Jennifer K Balch et al.ARTICLEScience2009

    Burn, Baby, Burn Wildfires can have dramatic and devastating effects on landscapes and human structures and are important agents in environmental transformation. Their impacts on nonanthropocentric aspects of the environment, such as ecosystems, biodiversity, carbon reserves, and climate, are often overlooked. Bowman et al. (p. 481 ) review what is known and what is needed to develop a holistic understanding of the role of fire in the Earth syste…

  • Pollen, plant macrofossil and charcoal records for palaeovegetation reconstruction in the Mediterranean-Black Sea Corridor since the Last Glacial Maximum

    Open AccessCarlos E Cordova, Sandy P Harrison et al.ARTICLEQuaternary International2009

  • Changes in fire regimes since the Last Glacial Maximum

    Open AccessMitchell J Power, Jennifer R Marlon et al.ARTICLEClimate Dynamics2008

  • Climate and human influences on global biomass burning over the past two millennia

    Open AccessJennifer R Marlon, Patrick J Bartlein et al.ARTICLENature Geoscience2008

  • Snowlines at the last glacial maximum and tropical cooling

    Open AccessSandy P HarrisonARTICLEQuaternary International2005

  • The depression of tropical snowlines at the last glacial maximum

    Open AccessMasa Kageyama, Sandy P Harrison et al.ARTICLEQuaternary International2005

  • The Late Quaternary glaciation of Africa

    Open AccessHenry A Osmaston, Sandy P HarrisonARTICLEQuaternary International2005

  • Simulating the Holocene Lake-Level Record of Lake Bysjön, Southern Sweden

    Open AccessJüri Vassiljev, Sandy P Harrison et al.ARTICLEQuaternary Research1998

    Lake Bysjön, southern Sweden, has experienced major lake-level lowerings during the Holocene, with one interval about 9000 14 C yr B.P. when water level dropped ca. 7 m and the lake became closed. These changes were not solely due to known changes in radiation budgets or seasonal temperatures. Simulations with a lake-catchment model indicate that, given the actual changes in radiation and temperatures, all the observed lake-level lowerings (inclu…

  • Present‐day and mid‐Holocene biomes reconstructed from pollen and plant macrofossil data from the former Soviet Union and Mongolia

    Open AccessPavel E Tarasov, Thompson Webb Iii et al.ARTICLEJournal of Biogeography1998

    Fossil pollen data supplemented by tree macrofossil records were used to reconstruct the vegetation of the Former Soviet Union and Mongolia at 6000 years. Pollen spectra were assigned to biomes using the plant‐functional‐type method developed by Prentice et al . (1996). Surface pollen data and a modern vegetation map provided a test of the method. This is the first time such a broad‐scale vegetation reconstruction for the greater part of northern…

  • Late Quaternary Lake-Level Record from Northern Eurasia

    Open AccessSandy P Harrison, Ge Yu et al.ARTICLEQuaternary Research1996

    Lake records from northern Eurasia show regionally coherent patterns of changes during the late Quaternary. Lakes peripheral to the Scandinavian ice sheet were lower than those today but lakes in the Mediterranean zone were high at the glacial maximum, reflecting the dominance of glacial anticyclonic conditions in northern Europe and a southward shift of the Westerlies. The influence of the glacial anticyclonic circulation attenuated through the …

  • The Response of Northern Hemisphere Extratropical Climate and Vegetation to Orbitally Induced Changes in Insolation during the Last Interglaciation

    Open AccessSandy P Harrison, John E Kutzbach et al.ARTICLEQuaternary Research1995

    The last interglaciation (substage 5e) provides an opportunity to examine the effects of extreme orbital changes on regional climates. We have made two atmospheric general circulation model experiments: P+T+ approximated the northern hemisphere seasonality maximum near the beginning of 5e; P-T- approximated the minimum near the end of 5e. Simulated regional climate changes have been translated into biome changes using a physiologically based mode…

  • Reconstruction of Holocene Precipitation Patterns in Europe Using Pollen and Lake-Level Data

    Open AccessJoël Guiot, Sandy P Harrison et al.ARTICLEQuaternary Research1993

    Lake-level data can be used to refine palaeoclimate reconstructions based on pollen data. This approach is illustrated for the European Holocene. Estimates of P-PET (precipitation minus potential evapotranspiration) were first inferred from modern pollen analogues. The pollen-based estimates were then compared with the status of lakes within a 5° radius. Analogues with P-PET anomalies inconsistent with the lake-level changes were rejected. The "c…

  • European lakes as palaeohydrological and palaeoclimatic indicators

    Open AccessSandy P Harrison, Gunnar DigerfeldtARTICLEQuaternary Science Reviews1993

  • Special Paper

    I Colin Prentice, Wolfgang Cramer et al.ARTICLEJournal of Biogeography1992

    I. Colin Prentice, Wolfgang Cramer, Sandy P. Harrison, Rik Leemans, Robert A. Monserud, Allen M. Solomon, Special Paper: A Global Biome Model Based on Plant Physiology and Dominance, Soil Properties and Climate, Journal of Biogeography, Vol. 19, No. 2 (Mar., 1992), pp. 117-134

  • General circulation models, palaeoclimatic data and last interglacial climates

    Open AccessSandy P Harrison, J E Kutzbach et al.ARTICLEQuaternary International1991