Heping Liu
Biographic Data
| ID | 4277279 |
|---|---|
| NAME | Heping Liu |
| GIVEN NAMES | Heping |
| FAMILY NAME | Liu |
| SIGNATURE | LIU H |
| AFFILIATIONS | Washington State University |
| ORCID | 0000-0003-3352-6175 |
| VERIFIED | Yes |
| TOTAL WORKS | 12 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 12 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2002 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 0 |
The effects of PM2.5 components on the cardiovascular disease admissions in Shanghai City, China
This study found that five PM 2.5 components were significant risk factors for CVD admissions and specific CVD diseases in Shanghai City. The elderly were susceptible to [Formula: see text],[Formula: see text], OM, and BC
Diel, seasonal, and inter-annual variation in carbon dioxide effluxes from lakes and reservoirs
Accounting for temporal changes in carbon dioxide (CO 2 ) effluxes from freshwaters remains a challenge for global and regional carbon budgets. Here, we synthesize 171 site-months of flux measurements of CO 2 based on the eddy covariance method from 13 lakes and reservoirs in the Northern Hemisphere, and quantify dynamics at multiple temporal scales. We found pronounced sub-annual variability in CO 2 flux at all sites. By accounting for diel vari…
Spatial variability of global lake evaporation regulated by vertical vapor pressure difference
Evaporation ( E ) from about 300 million lakes worldwide without plant physiological constraints directly reflects hydrological response to atmospheric forcings. However, it remains inadequately understood about what regulate spatial variability of global lake E across seasons. Here we show that vertical vapor pressure difference ( e D ) accounts for 66% of the spatial variability of annual E , followed by wind speed (16%). The e D is also the pr…
Mechanistic links between underestimated CO 2 fluxes and non-closure of the surface energy balance in a semi-arid sagebrush ecosystem
The surface energy balance non-closure problem in eddy covariance (EC) studies has been largely attributed to the influence of large-scale turbulent eddies (hereafter large eddies) on latent and sensible heat fluxes. However, how such large eddies concurrently affect CO 2 fluxes remains less studied and mechanistic links between the energy balance non-closure and CO 2 fluxes are not well understood. Here, using turbulence data collected from an E…
Non-closure of the surface energy balance explained by phase difference between vertical velocity and scalars of large atmospheric eddies
It is now accepted that large-scale turbulent eddies impact the widely reported non-closure of the surface energy balance when latent and sensible heat fluxes are measured using the eddy covariance method in the atmospheric surface layer (ASL). However, a mechanistic link between large eddies and non-closure of the surface energy balance remains a subject of inquiry. Here, measured 10 Hz time series of vertical velocity, air temperature, and wate…
Large CO 2 effluxes at night and during synoptic weather events significantly contribute to CO 2 emissions from a reservoir
CO _2 emissions from inland waters are commonly determined by indirect methods that are based on the product of a gas transfer coefficient and the concentration gradient at the air water interface (e.g., wind-based gas transfer models). The measurements of concentration gradient are typically collected during the day in fair weather throughout the course of a year. Direct measurements of eddy covariance CO _2 fluxes from a large inland water body…
Data-based perfect-deficit approach to understanding climate extremes and forest carbon assimilation capacity
Several lines of evidence suggest that the warming climate plays a vital role in driving certain types of extreme weather. The impact of warming and of extreme weather on forest carbon assimilation capacity is poorly known. Filling this knowledge gap is critical towards understanding the amount of carbon that forests can hold. Here, we used a perfect-deficit approach to identify forest canopy photosynthetic capacity (CPC) deficits and analyze how…
Variability in cold front activities modulating cool-season evaporation from a southern inland water in the USA
Understanding seasonal variations in the evaporation of inland waters (e.g., lakes and reservoirs) is important for water resource management as well as the prediction of the hydrological cycles in response to climate change. We analyzed eddy covariance-based evaporation measurements from the Ross Barnett Reservoir (32◦26N, 90◦02W; which is always ice-free) in central Mississippi during the cool months (i.e., September–March) of 2007 and 2008, an…
Climate-induced hotspots in surface energy fluxes from 1948 to 2000
Understanding how land surfaces respond to climate change requires knowledge of land-surface processes, which control the degree to which interannual variability and mean trends in climatic variables affect the surface energy budget. We use the latest version of the Community Land Model version 3.5 (CLM3.5), which is driven by the latest updated hybrid reanalysis-observation atmospheric forcing dataset constructed by Princeton University, to obta…
Climate control of terrestrial carbon exchange across biomes and continents
Understanding the relationships between climate and carbon exchange by terrestrial ecosystems \nis critical to predict future levels of atmospheric carbon dioxide because of the potential \naccelerating effects of positive climate–carbon cycle feedbacks. However, directly observed \nrelationships between climate and terrestrial CO2 exchange with the atmosphere across biomes \nand continents are lacking. Here we present data describing the relatio…
Empress Liu's "Icon of Maitreya"
"The Water Mill" and Northern Song Imperial Patronage of Art, Commerce, and Science
No prominent works on this page.
"The Water Mill" and Northern Song Imperial Patronage of Art, Commerce, and Science
Empress Liu's "Icon of Maitreya"
Climate-induced hotspots in surface energy fluxes from 1948 to 2000
Understanding how land surfaces respond to climate change requires knowledge of land-surface processes, which control the degree to which interannual variability and mean trends in climatic variables affect the surface energy budget. We use the latest version of the Community Land Model version 3.5 (CLM3.5), which is driven by the latest updated hybrid reanalysis-observation atmospheric forcing dataset constructed by Princeton University, to obta…
Climate control of terrestrial carbon exchange across biomes and continents
Understanding the relationships between climate and carbon exchange by terrestrial ecosystems \nis critical to predict future levels of atmospheric carbon dioxide because of the potential \naccelerating effects of positive climate–carbon cycle feedbacks. However, directly observed \nrelationships between climate and terrestrial CO2 exchange with the atmosphere across biomes \nand continents are lacking. Here we present data describing the relatio…
Variability in cold front activities modulating cool-season evaporation from a southern inland water in the USA
Understanding seasonal variations in the evaporation of inland waters (e.g., lakes and reservoirs) is important for water resource management as well as the prediction of the hydrological cycles in response to climate change. We analyzed eddy covariance-based evaporation measurements from the Ross Barnett Reservoir (32◦26N, 90◦02W; which is always ice-free) in central Mississippi during the cool months (i.e., September–March) of 2007 and 2008, an…
Data-based perfect-deficit approach to understanding climate extremes and forest carbon assimilation capacity
Several lines of evidence suggest that the warming climate plays a vital role in driving certain types of extreme weather. The impact of warming and of extreme weather on forest carbon assimilation capacity is poorly known. Filling this knowledge gap is critical towards understanding the amount of carbon that forests can hold. Here, we used a perfect-deficit approach to identify forest canopy photosynthetic capacity (CPC) deficits and analyze how…
Large CO 2 effluxes at night and during synoptic weather events significantly contribute to CO 2 emissions from a reservoir
CO _2 emissions from inland waters are commonly determined by indirect methods that are based on the product of a gas transfer coefficient and the concentration gradient at the air water interface (e.g., wind-based gas transfer models). The measurements of concentration gradient are typically collected during the day in fair weather throughout the course of a year. Direct measurements of eddy covariance CO _2 fluxes from a large inland water body…
Non-closure of the surface energy balance explained by phase difference between vertical velocity and scalars of large atmospheric eddies
It is now accepted that large-scale turbulent eddies impact the widely reported non-closure of the surface energy balance when latent and sensible heat fluxes are measured using the eddy covariance method in the atmospheric surface layer (ASL). However, a mechanistic link between large eddies and non-closure of the surface energy balance remains a subject of inquiry. Here, measured 10 Hz time series of vertical velocity, air temperature, and wate…
Mechanistic links between underestimated CO 2 fluxes and non-closure of the surface energy balance in a semi-arid sagebrush ecosystem
The surface energy balance non-closure problem in eddy covariance (EC) studies has been largely attributed to the influence of large-scale turbulent eddies (hereafter large eddies) on latent and sensible heat fluxes. However, how such large eddies concurrently affect CO 2 fluxes remains less studied and mechanistic links between the energy balance non-closure and CO 2 fluxes are not well understood. Here, using turbulence data collected from an E…
Spatial variability of global lake evaporation regulated by vertical vapor pressure difference
Evaporation ( E ) from about 300 million lakes worldwide without plant physiological constraints directly reflects hydrological response to atmospheric forcings. However, it remains inadequately understood about what regulate spatial variability of global lake E across seasons. Here we show that vertical vapor pressure difference ( e D ) accounts for 66% of the spatial variability of annual E , followed by wind speed (16%). The e D is also the pr…
Diel, seasonal, and inter-annual variation in carbon dioxide effluxes from lakes and reservoirs
Accounting for temporal changes in carbon dioxide (CO 2 ) effluxes from freshwaters remains a challenge for global and regional carbon budgets. Here, we synthesize 171 site-months of flux measurements of CO 2 based on the eddy covariance method from 13 lakes and reservoirs in the Northern Hemisphere, and quantify dynamics at multiple temporal scales. We found pronounced sub-annual variability in CO 2 flux at all sites. By accounting for diel vari…
The effects of PM2.5 components on the cardiovascular disease admissions in Shanghai City, China
This study found that five PM 2.5 components were significant risk factors for CVD admissions and specific CVD diseases in Shanghai City. The elderly were susceptible to [Formula: see text],[Formula: see text], OM, and BC
Atmospheric sciences (8 works) · Environmental Science (8 works) · Climatology (7 works) · Eddy covariance (7 works) · Geology (7 works) · Ecosystem (6 works) · Plant Water Relations and Carbon Dynamics (6 works) · Climate change (5 works) · Meteorology (5 works) · Climate variability and models (4 works)