Systematic variation in evapotranspiration trends and drivers across the Northeastern United States

Matthew A. Vadeboncoeur, Mark B. Green, Heidi Asbjornsen, John L. Campbell, Mary Beth Adams, Elizabeth Weeks Boyer, Douglas A. Burns, Ivan J. Fernandez, Myron J. Mitchell, James B. Shanley

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The direction and magnitude of responses of evapotranspiration (ET) to climate change are important to understand, as ET represents a major water and energy flux from terrestrial ecosystems, with consequences that feed back to the climate system. We inferred multidecadal trends in water balance in 11 river basins (1940–2012) and eight smaller watersheds (with records ranging from 18 to 61 years in length) in the Northeastern United States. Trends in river basin actual ET (AET) varied across the region, with an apparent latitudinal pattern: AET increased in the cooler northern part of the region (Maine) but decreased in some warmer regions to the southwest (Pennsylvania–Ohio). Of the four small watersheds with records longer than 45 years, two fit this geographic pattern in AET trends. The differential effects of the warming climate on AET across the region may indicate different mechanisms of change in more- vs. less-energy-limited watersheds, even though annual precipitation greatly exceeds potential ET across the entire region. Correlations between AET and time series of temperature and precipitation also indicate differences in limiting factors for AET across the Northeastern U.S. climate gradient. At many sites across the climate gradient, water-year AET correlated with summer precipitation, implying that water limitation is at least transiently important in some years, whereas correlations with temperature indices were more prominent in northern than southern sites within the region.

Original languageEnglish (US)
Pages (from-to)3547-3560
Number of pages14
JournalHydrological Processes
Volume32
Issue number23
DOIs
StatePublished - Nov 15 2018

Fingerprint

evapotranspiration
climate
watershed
river basin
potential evapotranspiration
energy flux
terrestrial ecosystem
water
limiting factor
trend
water budget
warming
temperature
time series
climate change
summer
energy

All Science Journal Classification (ASJC) codes

  • Water Science and Technology

Cite this

Vadeboncoeur, M. A., Green, M. B., Asbjornsen, H., Campbell, J. L., Adams, M. B., Boyer, E. W., ... Shanley, J. B. (2018). Systematic variation in evapotranspiration trends and drivers across the Northeastern United States. Hydrological Processes, 32(23), 3547-3560. https://doi.org/10.1002/hyp.13278
Vadeboncoeur, Matthew A. ; Green, Mark B. ; Asbjornsen, Heidi ; Campbell, John L. ; Adams, Mary Beth ; Boyer, Elizabeth Weeks ; Burns, Douglas A. ; Fernandez, Ivan J. ; Mitchell, Myron J. ; Shanley, James B. / Systematic variation in evapotranspiration trends and drivers across the Northeastern United States. In: Hydrological Processes. 2018 ; Vol. 32, No. 23. pp. 3547-3560.
@article{300d5f3acb354080a4c0cea643708a70,
title = "Systematic variation in evapotranspiration trends and drivers across the Northeastern United States",
abstract = "The direction and magnitude of responses of evapotranspiration (ET) to climate change are important to understand, as ET represents a major water and energy flux from terrestrial ecosystems, with consequences that feed back to the climate system. We inferred multidecadal trends in water balance in 11 river basins (1940–2012) and eight smaller watersheds (with records ranging from 18 to 61 years in length) in the Northeastern United States. Trends in river basin actual ET (AET) varied across the region, with an apparent latitudinal pattern: AET increased in the cooler northern part of the region (Maine) but decreased in some warmer regions to the southwest (Pennsylvania–Ohio). Of the four small watersheds with records longer than 45 years, two fit this geographic pattern in AET trends. The differential effects of the warming climate on AET across the region may indicate different mechanisms of change in more- vs. less-energy-limited watersheds, even though annual precipitation greatly exceeds potential ET across the entire region. Correlations between AET and time series of temperature and precipitation also indicate differences in limiting factors for AET across the Northeastern U.S. climate gradient. At many sites across the climate gradient, water-year AET correlated with summer precipitation, implying that water limitation is at least transiently important in some years, whereas correlations with temperature indices were more prominent in northern than southern sites within the region.",
author = "Vadeboncoeur, {Matthew A.} and Green, {Mark B.} and Heidi Asbjornsen and Campbell, {John L.} and Adams, {Mary Beth} and Boyer, {Elizabeth Weeks} and Burns, {Douglas A.} and Fernandez, {Ivan J.} and Mitchell, {Myron J.} and Shanley, {James B.}",
year = "2018",
month = "11",
day = "15",
doi = "10.1002/hyp.13278",
language = "English (US)",
volume = "32",
pages = "3547--3560",
journal = "Hydrological Processes",
issn = "0885-6087",
publisher = "John Wiley and Sons Ltd",
number = "23",

}

Vadeboncoeur, MA, Green, MB, Asbjornsen, H, Campbell, JL, Adams, MB, Boyer, EW, Burns, DA, Fernandez, IJ, Mitchell, MJ & Shanley, JB 2018, 'Systematic variation in evapotranspiration trends and drivers across the Northeastern United States', Hydrological Processes, vol. 32, no. 23, pp. 3547-3560. https://doi.org/10.1002/hyp.13278

Systematic variation in evapotranspiration trends and drivers across the Northeastern United States. / Vadeboncoeur, Matthew A.; Green, Mark B.; Asbjornsen, Heidi; Campbell, John L.; Adams, Mary Beth; Boyer, Elizabeth Weeks; Burns, Douglas A.; Fernandez, Ivan J.; Mitchell, Myron J.; Shanley, James B.

In: Hydrological Processes, Vol. 32, No. 23, 15.11.2018, p. 3547-3560.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Systematic variation in evapotranspiration trends and drivers across the Northeastern United States

AU - Vadeboncoeur, Matthew A.

AU - Green, Mark B.

AU - Asbjornsen, Heidi

AU - Campbell, John L.

AU - Adams, Mary Beth

AU - Boyer, Elizabeth Weeks

AU - Burns, Douglas A.

AU - Fernandez, Ivan J.

AU - Mitchell, Myron J.

AU - Shanley, James B.

PY - 2018/11/15

Y1 - 2018/11/15

N2 - The direction and magnitude of responses of evapotranspiration (ET) to climate change are important to understand, as ET represents a major water and energy flux from terrestrial ecosystems, with consequences that feed back to the climate system. We inferred multidecadal trends in water balance in 11 river basins (1940–2012) and eight smaller watersheds (with records ranging from 18 to 61 years in length) in the Northeastern United States. Trends in river basin actual ET (AET) varied across the region, with an apparent latitudinal pattern: AET increased in the cooler northern part of the region (Maine) but decreased in some warmer regions to the southwest (Pennsylvania–Ohio). Of the four small watersheds with records longer than 45 years, two fit this geographic pattern in AET trends. The differential effects of the warming climate on AET across the region may indicate different mechanisms of change in more- vs. less-energy-limited watersheds, even though annual precipitation greatly exceeds potential ET across the entire region. Correlations between AET and time series of temperature and precipitation also indicate differences in limiting factors for AET across the Northeastern U.S. climate gradient. At many sites across the climate gradient, water-year AET correlated with summer precipitation, implying that water limitation is at least transiently important in some years, whereas correlations with temperature indices were more prominent in northern than southern sites within the region.

AB - The direction and magnitude of responses of evapotranspiration (ET) to climate change are important to understand, as ET represents a major water and energy flux from terrestrial ecosystems, with consequences that feed back to the climate system. We inferred multidecadal trends in water balance in 11 river basins (1940–2012) and eight smaller watersheds (with records ranging from 18 to 61 years in length) in the Northeastern United States. Trends in river basin actual ET (AET) varied across the region, with an apparent latitudinal pattern: AET increased in the cooler northern part of the region (Maine) but decreased in some warmer regions to the southwest (Pennsylvania–Ohio). Of the four small watersheds with records longer than 45 years, two fit this geographic pattern in AET trends. The differential effects of the warming climate on AET across the region may indicate different mechanisms of change in more- vs. less-energy-limited watersheds, even though annual precipitation greatly exceeds potential ET across the entire region. Correlations between AET and time series of temperature and precipitation also indicate differences in limiting factors for AET across the Northeastern U.S. climate gradient. At many sites across the climate gradient, water-year AET correlated with summer precipitation, implying that water limitation is at least transiently important in some years, whereas correlations with temperature indices were more prominent in northern than southern sites within the region.

UR - http://www.scopus.com/inward/record.url?scp=85053756907&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85053756907&partnerID=8YFLogxK

U2 - 10.1002/hyp.13278

DO - 10.1002/hyp.13278

M3 - Article

AN - SCOPUS:85053756907

VL - 32

SP - 3547

EP - 3560

JO - Hydrological Processes

JF - Hydrological Processes

SN - 0885-6087

IS - 23

ER -