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407篇 您的检索式：作者名="Harrison P C"

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	题名	作者	年代	出处	被引量
1	Comparison of two remote sensing models for estimating evapotranspiration: algorithm evaluation and application in seasonally arid ecosystems in South Africa显示文摘Remote sensing tools are becoming increasingly important for providing spatial information on water use by different ecosystems. Despite significant advances in remote sensing based evapotranspiration(ET) models in recent years, important information gaps still exist on the accuracy of the models particularly in arid and semi-arid environments. In this study, we evaluated the Penman-Monteith based MOD16 and the modified Priestley-Taylor(PT-JPL) models at the daily time step against three measured ET datasets. We used data from two summer and one winter rainfall sites in South Africa. One site was dominated by native broad leaf and the other by fine leafed deciduous savanna tree species and C4 grasses. The third site was in the winter rainfall Cape region and had shrubby fynbos vegetation. Actual ET was measured using open-path eddy covariance systems at the summer rainfall sites while a surface energy balance system utilizing the large aperture boundary layer scintillometer was used in the Cape. Model performance varied between sites and between years with the worst estimates(R2<0.50 and RMSE>0.80 mm/d) observed during years with prolonged mid-summer dry spells in the summer rainfall areas. Sensitivity tests on MOD16 showed that the leaf area index, surface conductance and radiation budget parameters had the largest effect on simulated ET. MOD16 ET predictions were improved by:(1) reformulating the emissivity expressions in the net radiation equation;(2) incorporating representative surface conductance values;and(3) including a soil moisture stress function in the transpiration sub-model. Implementing these changes increased the accuracy of MOD16 daily ET predictions at all sites. However, similar adjustments to the PT-JPL model yielded minimal improvements. We conclude that the MOD16 ET model has the potential to accurately predict water use in arid environments provided soil water stress and accurate biome-specific parameters are incorporated.	Sebinasi DZIKITI Nebo Z JOVANOVIC Richard DH BUGAN Abel RAMOELO Nobuhle P MAJOZI Alecia NICKLESS Moses A CHO David C LE MAITRE Zanele NTSHIDI Harrison H PIENAAR	2019	Journal of Arid Land2019，11，4：	4
2	Invasive Pneumococcal Disease in Children 5 Years After Conjugate Vaccine Introduction - Eight States, 1998-2005显示文摘	Reingold A Hadler J Farley M M Harrison L Lynfield R Lexau C Bennett N Thomas A Craig A S Smith P J Beall B Whitney C G Moore M Pilishvili T	2008	MMWR Morbidity and Mortality Weekly Report2008，，6：	1
3	Simultaneous Shift and Carbon Dioxide Separation for the Direct Production of Hydrogen显示文摘	Han C Harrison D P		0，，24：	1
4	Global Supply Chain Management at Digital Equipment Corporation显示文摘	Amtzen B C Brown G G Harrison T P Trafton L	1995	Interfaces1995，25，1：	1
5	A review of the state of the art in modelling progressive mechanical breakdown and associated fluid flow in intact heterogeneous rocks显示文摘	Yuan S C Harrison J P		0，，：	1
6	High incidence of defective high-shear platelet function among platelet donors显示文摘	Harrison P Segal H Furtado C	2004	Transfusion2004，44，7：	1
7	Quantifying the bullwhip effect in a supply chain with stochastic lead time显示文摘	Kim J G Chatfield D Harrison T P Hayya J C	2006	European Journal of Operational Research2006，173，：	1
8	Reproductive health in humans and wildlife:Are adverse trends associated with environmental chemical exposure显示文摘	Harrison P T C Holmes P Humfrey C D N	1997	Science of the Total Environment1997，205，23：	1
9	Transport,manipulation, and reaction of biological cells on-chip using electrokinetic effects 显示文摘	LI P C H HARRISON D J	1997	Anal Chem1997，69，8：	1
10	Global bi-ome model: predicting global vegetation patterns fromplant physiology and dominance,soil properties and cli-mate 显示文摘	Prentice I C Cramer W Harrison S P	1992	Journal of Biogeogr1992，19，：	1
11	Development of a hydro-mechanical localdegradation approach and its application to modelling fluid flowduring progressive fracturing of heterogeneous rocks显示文摘	Yuan S C Harrison J P	2005	Interna-tional Journal of Rock Mechanics&Mining Sciences2005，42，：	1
12	Block copolymer lithography:Periodic arrays of -10 to the 11th power holes in 1 square centimeter显示文摘	PARK M HARRISON C CHAIKIN P M REGISTER R A ADAMSON D H	1997	Science1997，276，5317：	1
13	New quantitative parameters on a recently introduced automated blood cell counter-the XE 2100 显示文摘	Briggs C Harrison P Grant D	2002	Clin Lab Haematol2002，22，：	1
14	A multi-formalism architecture for agent-based, order-centric supply chain simulation显示文摘	Chatfield D C Hayya J C Harrison T P	2007	Simulation Modelling Practice and Theory2007，15，2：	1
15	Effects of thermal-induced respiratory alkalosis on blood ionized calcium levels in the domestic hen 显示文摘	ODOM T W HARRISON P C BOTTJE W G	1986	Poultry Science1986，65，3：	1
16	A global biome model based on plant physiology and dominance显示文摘	Prentice I C Cramer W Harrison S P Leemans	1992	Soil Properties and Climate Journal of Biogeography1992，19，：	1
17	Block Copolymer Lithography: Periodic Arrays of - 1011 Holes in 1 Square Centimeter显示文摘	Park M Harrison C Chaikin P M	1997	Science1997，276，：	1
18	An empirical dilatancy index for the dilatant deformation of rock显示文摘	YUAN S C HARRISON J P	2004	International Journal of Rock Mechanics and Mining Sciences2004，41，4：	1
19	New quantitative parameters on a recently introduced automated blood cell counter-the XE 2100显示文摘	Harrison P Grant D	2000	Clin Lab Haematol2000，22，6：	1
20	Determinants of Long-Distance Investing by Business Angels in the UK 显示文摘	HARRISON R MASON C ROBSON P	2010	Entrepreneurship and Regional Development2010，22，2：	1

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