Haishan Chen
Biographic Data
| ID | 7893178 |
|---|---|
| NAME | Haishan Chen |
| GIVEN NAMES | Haishan |
| FAMILY NAME | Chen |
| SIGNATURE | CHEN H |
| AFFILIATIONS | Nanjing University of Information Science and Technology |
| ORCID | 0000-0002-2403-3187 |
| VERIFIED | Yes |
| TOTAL WORKS | 14 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 14 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2015 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 0 |
Arctic warming delays the Afro-Asian monsoon retreat amplifying autumn rainfall
The Afro-Asian summer monsoon (AfroA-SM) provides essential rainfall for billions of people. However, in recent decades, unusually wet conditions have persisted into autumn, creating unprecedented extremes. Using multidecadal observations, reanalysis datasets, and Polar Amplification Model Intercomparison Project (PAMIP) simulations, we show that Arctic warming significantly postpones the retreat of the AfroA-SM. This delay shifts the northernmos…
Attribution of multidecadal summer temperature variations over Eurasia
Surface air temperature (SAT) over Eurasia exhibits a non-uniform pattern during summer, with pronounced warming over Europe and East Asia. However, the contributions of thermodynamic and dynamic processes resulting from internal climate variability and external forcing to the non-uniform warming rates remain unclear. In this study, we attribute the Eurasian multidecadal temperature variations by using a combination of low-frequency component ana…
Changes in fire-season burned area in northeastern China regulated by tropical North Atlantic variability
Mapping and monitoring regional fire activity are essential to understand their responses to human activities and climate change. Here we use multiple sources of observations, reanalysis data, and model simulations to examine the responses of fire activity to climate change over northeastern China in the past two decades. We detected significant positive burned area (BA) trends in this region since 2003 during spring and much stronger interannual…
Global pattern of soil temperature exceeding air temperature and its linkages with surface energy fluxes
Understanding the pattern of changes in extreme heat is crucial to developing climate change adaptation strategies. Existing studies mostly focus on changes in air temperature and tend to overlook soil temperature; however, changes in extreme heat in air and soil can be inconsistent under global change and water–carbon cycling may be more sensitive to soil condition. In this study, we examine the global pattern of long-term trends in the differen…
Future drought overestimations due to no constraints of CO 2 physiological effect and land-atmosphere coupling on potential evapotranspiration
Various offline drought indices have been widely used to project dryness/wetness and drought changes. However, the results derived from these indices often differ from or even contradict observations and direct projections made by coupled climate models. Therefore, it is crucial to investigate this scientific debate thoroughly and identify the potential causes. This study adopts a water demand-side perspective, focusing on potential evapotranspir…
Significant influence of winter Pacific-North American pattern on spring vegetation in mid-high latitude Asia
Given that the vegetation over mid-high latitude Asia (MHA) has been more variable in recent years, it is necessary to better understand the physical causes of vegetation variations in this region. Based on the normalized difference vegetation index (NDVI), this study reveals a close linkage of the variability of spring (April–May) vegetation in MHA to the winter (December–January–February) Pacific-North American (PNA) pattern. When the winter PN…
Terrestrial moisture sources dominate summer precipitation fluctuations in Northwest China
Northwest China (NWC), is characterized by its arid and semi-arid environment, and exhibits high sensitivity to precipitation variations. Recent research indicates a wetting tendency over NWC, yet quantifying its moisture source remains challenging. Here, employing a 40 year simulation with Community Atmosphere Model version 5.1 (CAM5.1) coupled to an atmospheric water tracer algorithm, we ascertain that the dominant source of summer moisture ove…
Exploring the environmental drivers of vegetation seasonality changes in the northern extratropical latitudes
Vegetation seasonality in the northern extratropical latitudes (NEL) has changed dramatically, but our understanding of how it responds to climate change (e.g. temperature, soil moisture, shortwave radiation) and human activities (e.g. elevated CO 2 concentration) remains insufficient. In this study, we used two remote-sensing-based leaf area index and factorial simulations from the TRENDY models to attribute the changes in the integrated vegetat…
Important non-local effects of deforestation on cloud cover changes in CMIP6 models
Recent satellite and in-situ measurements show that forests can influence regional and global cloud cover through biophysical processes. However, forest’s possible local and non-local impacts on clouds remain unclear. By analyzing the model simulations from the Coupled Model Intercomparison Project Phase 6, here we show that deforestation-induced cloud cover changes have a strong latitudinal dependence, with decreased cloudiness in the tropics bu…
Variability of spring ecosystem water use efficiency in Northeast Asia and its linkage to the Polar-Eurasia pattern
Given that water use efficiency (WUE) is an important indicator to measure the trade-off between carbon uptake and water consumption within the ecosystem, better understanding the variation of ecosystem WUE and related driving factors is of great interest. In this study, the variability of spring ecosystem WUE in Northeast Asia (NEA) was investigated. The results show that its primary mode exhibits a monosign variation. This mode is directly cont…
The Associations between Daytime Physical Activity, While-in-Bed Smartphone Use, Sleep Delay, and Sleep Quality
Bedtime smartphone use is an emerging issue that threatens the sleep health of children and young adults. Physical activity can have numerous health benefits, including reducing problematic or addictive behavior. However, the role of daily physical activity in reducing bedtime smartphone use is understudied. Hence, we conducted a one-day cross-sectional on the weekend (21-22 May 2021) to investigate the associations between daytime physical activ…
Changing response of the North Atlantic/European winter climate to the 11 year solar cycle
Recent studies have presented conflicting results regarding the 11-year solar cycle (SC) influences on winter climate over the North Atlantic/European region. Analyses of only the most recent decades suggest a synchronized North Atlantic Oscillation (NAO)-like response pattern to the SC. Analyses of long-term climate data sets dating back to the late 19th century, however, suggest a mslp response that lags the SC by 2-4 years in the southern node…
Possible causes of the Central Equatorial African long-term drought
Previous studies found that Central Equatorial Africa (CEA) has experienced a long-term drying trend over the past two decades. To further evaluate this finding, we investigate possible mechanisms for this drought by analyzing multiple sources of observations and reanalysis data. We examine the atmospheric circulation changes related to sea surface temperature (SST) variations that control the equatorial African rainfall. Our results indicate tha…
Stronger warming amplification over drier ecoregions observed since 1979
Observations show that the global mean surface temperature has increased steadily since the 1950s and this warming trend is particularly strong and linear over land after 1979. This paper analyzes the relationship between surface temperature trends observed over land for the period 1979–2012 and enhanced vegetation index (EVI), a satellite measured vegetation greenness index, by large-scale ecoregion. The land areas between 50°S and 50°N are clas…
No prominent works on this page.
Stronger warming amplification over drier ecoregions observed since 1979
Observations show that the global mean surface temperature has increased steadily since the 1950s and this warming trend is particularly strong and linear over land after 1979. This paper analyzes the relationship between surface temperature trends observed over land for the period 1979–2012 and enhanced vegetation index (EVI), a satellite measured vegetation greenness index, by large-scale ecoregion. The land areas between 50°S and 50°N are clas…
Possible causes of the Central Equatorial African long-term drought
Previous studies found that Central Equatorial Africa (CEA) has experienced a long-term drying trend over the past two decades. To further evaluate this finding, we investigate possible mechanisms for this drought by analyzing multiple sources of observations and reanalysis data. We examine the atmospheric circulation changes related to sea surface temperature (SST) variations that control the equatorial African rainfall. Our results indicate tha…
Changing response of the North Atlantic/European winter climate to the 11 year solar cycle
Recent studies have presented conflicting results regarding the 11-year solar cycle (SC) influences on winter climate over the North Atlantic/European region. Analyses of only the most recent decades suggest a synchronized North Atlantic Oscillation (NAO)-like response pattern to the SC. Analyses of long-term climate data sets dating back to the late 19th century, however, suggest a mslp response that lags the SC by 2-4 years in the southern node…
The Associations between Daytime Physical Activity, While-in-Bed Smartphone Use, Sleep Delay, and Sleep Quality
Bedtime smartphone use is an emerging issue that threatens the sleep health of children and young adults. Physical activity can have numerous health benefits, including reducing problematic or addictive behavior. However, the role of daily physical activity in reducing bedtime smartphone use is understudied. Hence, we conducted a one-day cross-sectional on the weekend (21-22 May 2021) to investigate the associations between daytime physical activ…
Exploring the environmental drivers of vegetation seasonality changes in the northern extratropical latitudes
Vegetation seasonality in the northern extratropical latitudes (NEL) has changed dramatically, but our understanding of how it responds to climate change (e.g. temperature, soil moisture, shortwave radiation) and human activities (e.g. elevated CO 2 concentration) remains insufficient. In this study, we used two remote-sensing-based leaf area index and factorial simulations from the TRENDY models to attribute the changes in the integrated vegetat…
Important non-local effects of deforestation on cloud cover changes in CMIP6 models
Recent satellite and in-situ measurements show that forests can influence regional and global cloud cover through biophysical processes. However, forest’s possible local and non-local impacts on clouds remain unclear. By analyzing the model simulations from the Coupled Model Intercomparison Project Phase 6, here we show that deforestation-induced cloud cover changes have a strong latitudinal dependence, with decreased cloudiness in the tropics bu…
Variability of spring ecosystem water use efficiency in Northeast Asia and its linkage to the Polar-Eurasia pattern
Given that water use efficiency (WUE) is an important indicator to measure the trade-off between carbon uptake and water consumption within the ecosystem, better understanding the variation of ecosystem WUE and related driving factors is of great interest. In this study, the variability of spring ecosystem WUE in Northeast Asia (NEA) was investigated. The results show that its primary mode exhibits a monosign variation. This mode is directly cont…
Changes in fire-season burned area in northeastern China regulated by tropical North Atlantic variability
Mapping and monitoring regional fire activity are essential to understand their responses to human activities and climate change. Here we use multiple sources of observations, reanalysis data, and model simulations to examine the responses of fire activity to climate change over northeastern China in the past two decades. We detected significant positive burned area (BA) trends in this region since 2003 during spring and much stronger interannual…
Global pattern of soil temperature exceeding air temperature and its linkages with surface energy fluxes
Understanding the pattern of changes in extreme heat is crucial to developing climate change adaptation strategies. Existing studies mostly focus on changes in air temperature and tend to overlook soil temperature; however, changes in extreme heat in air and soil can be inconsistent under global change and water–carbon cycling may be more sensitive to soil condition. In this study, we examine the global pattern of long-term trends in the differen…
Future drought overestimations due to no constraints of CO 2 physiological effect and land-atmosphere coupling on potential evapotranspiration
Various offline drought indices have been widely used to project dryness/wetness and drought changes. However, the results derived from these indices often differ from or even contradict observations and direct projections made by coupled climate models. Therefore, it is crucial to investigate this scientific debate thoroughly and identify the potential causes. This study adopts a water demand-side perspective, focusing on potential evapotranspir…
Significant influence of winter Pacific-North American pattern on spring vegetation in mid-high latitude Asia
Given that the vegetation over mid-high latitude Asia (MHA) has been more variable in recent years, it is necessary to better understand the physical causes of vegetation variations in this region. Based on the normalized difference vegetation index (NDVI), this study reveals a close linkage of the variability of spring (April–May) vegetation in MHA to the winter (December–January–February) Pacific-North American (PNA) pattern. When the winter PN…
Terrestrial moisture sources dominate summer precipitation fluctuations in Northwest China
Northwest China (NWC), is characterized by its arid and semi-arid environment, and exhibits high sensitivity to precipitation variations. Recent research indicates a wetting tendency over NWC, yet quantifying its moisture source remains challenging. Here, employing a 40 year simulation with Community Atmosphere Model version 5.1 (CAM5.1) coupled to an atmospheric water tracer algorithm, we ascertain that the dominant source of summer moisture ove…
Attribution of multidecadal summer temperature variations over Eurasia
Surface air temperature (SAT) over Eurasia exhibits a non-uniform pattern during summer, with pronounced warming over Europe and East Asia. However, the contributions of thermodynamic and dynamic processes resulting from internal climate variability and external forcing to the non-uniform warming rates remain unclear. In this study, we attribute the Eurasian multidecadal temperature variations by using a combination of low-frequency component ana…
Arctic warming delays the Afro-Asian monsoon retreat amplifying autumn rainfall
The Afro-Asian summer monsoon (AfroA-SM) provides essential rainfall for billions of people. However, in recent decades, unusually wet conditions have persisted into autumn, creating unprecedented extremes. Using multidecadal observations, reanalysis datasets, and Polar Amplification Model Intercomparison Project (PAMIP) simulations, we show that Arctic warming significantly postpones the retreat of the AfroA-SM. This delay shifts the northernmos…
Environmental Science (12 works) · Climatology (11 works) · Geology (11 works) · Climate variability and models (10 works) · Geography (10 works) · Atmospheric sciences (8 works) · Ecology (6 works) · Physical geography (5 works) · Plant Water Relations and Carbon Dynamics (5 works) · Vegetation (pathology (5 works)