Deglacial hydroclimate of midcontinental North America

Steven L. Voelker, Michael C. Stambaugh, Richard P. Guyette, Xiahong Feng, David A. Grimley, Steven Leavitt, Irina Panyushkina, Eric C. Grimm, Jeremiah P. Marsicek, Bryan Shuman, B. Brandon Curry

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

During the last deglaciation temperatures over midcontinental North America warmed dramatically through the Bølling-Allerød, underwent a cool period associated with the Younger-Dryas and then reverted to warmer, near modern temperatures during the early Holocene. However, paleo proxy records of the hydroclimate of this period have presented divergent evidence. We reconstruct summer relative humidity (RH) across the last deglacial period using a mechanistic model of cellulose and leaf water δ18O and δD combined with a pollen-based temperature proxy to interpret stable isotopes of sub-fossil wood. Midcontinental RH was similar to modern conditions during the Last Glacial Maximum, progressively increased during the Bølling-Allerød, peaked during the Younger-Dryas, and declined sharply during the early Holocene. This RH record suggests deglacial summers were cooler and characterized by greater advection of moisture-laden air-masses from the Gulf of Mexico and subsequent entrainment over the mid-continent by a high-pressure system over the Laurentide ice sheet. These patterns help explain the formation of dark-colored cumulic horizons in many Great Plains paleosol sequences and the development of no-analog vegetation types common to the Midwest during the last deglacial period. Likewise, reduced early Holocene RH and precipitation correspond with a diminished glacial high-pressure system during the latter stages of ice-sheet collapse.

Original languageEnglish (US)
Pages (from-to)336-344
Number of pages9
JournalQuaternary Research
Volume83
Issue number2
DOIs
StatePublished - Mar 1 2015

Fingerprint

relative humidity
high pressure system
Holocene
Younger Dryas
last deglaciation
Laurentide Ice Sheet
temperature
summer
paleosol
Last Glacial Maximum
entrainment
air mass
vegetation type
ice sheet
cellulose
advection
stable isotope
pollen
moisture
fossil

Keywords

  • Atmospheric circulation
  • Bølling-Allerød
  • Glacial
  • Holocene
  • No-analog vegetation
  • Precipitation
  • Relative humidity
  • Stable isotope
  • Younger Dryas

ASJC Scopus subject areas

  • Earth-Surface Processes
  • Earth and Planetary Sciences(all)
  • Arts and Humanities (miscellaneous)

Cite this

Voelker, S. L., Stambaugh, M. C., Guyette, R. P., Feng, X., Grimley, D. A., Leavitt, S., ... Brandon Curry, B. (2015). Deglacial hydroclimate of midcontinental North America. Quaternary Research, 83(2), 336-344. https://doi.org/10.1016/j.yqres.2015.01.001

Deglacial hydroclimate of midcontinental North America. / Voelker, Steven L.; Stambaugh, Michael C.; Guyette, Richard P.; Feng, Xiahong; Grimley, David A.; Leavitt, Steven; Panyushkina, Irina; Grimm, Eric C.; Marsicek, Jeremiah P.; Shuman, Bryan; Brandon Curry, B.

In: Quaternary Research, Vol. 83, No. 2, 01.03.2015, p. 336-344.

Research output: Contribution to journalArticle

Voelker, SL, Stambaugh, MC, Guyette, RP, Feng, X, Grimley, DA, Leavitt, S, Panyushkina, I, Grimm, EC, Marsicek, JP, Shuman, B & Brandon Curry, B 2015, 'Deglacial hydroclimate of midcontinental North America', Quaternary Research, vol. 83, no. 2, pp. 336-344. https://doi.org/10.1016/j.yqres.2015.01.001
Voelker SL, Stambaugh MC, Guyette RP, Feng X, Grimley DA, Leavitt S et al. Deglacial hydroclimate of midcontinental North America. Quaternary Research. 2015 Mar 1;83(2):336-344. https://doi.org/10.1016/j.yqres.2015.01.001
Voelker, Steven L. ; Stambaugh, Michael C. ; Guyette, Richard P. ; Feng, Xiahong ; Grimley, David A. ; Leavitt, Steven ; Panyushkina, Irina ; Grimm, Eric C. ; Marsicek, Jeremiah P. ; Shuman, Bryan ; Brandon Curry, B. / Deglacial hydroclimate of midcontinental North America. In: Quaternary Research. 2015 ; Vol. 83, No. 2. pp. 336-344.
@article{d21c6f935f4943d6aef568195681b575,
title = "Deglacial hydroclimate of midcontinental North America",
abstract = "During the last deglaciation temperatures over midcontinental North America warmed dramatically through the B{\o}lling-Aller{\o}d, underwent a cool period associated with the Younger-Dryas and then reverted to warmer, near modern temperatures during the early Holocene. However, paleo proxy records of the hydroclimate of this period have presented divergent evidence. We reconstruct summer relative humidity (RH) across the last deglacial period using a mechanistic model of cellulose and leaf water δ18O and δD combined with a pollen-based temperature proxy to interpret stable isotopes of sub-fossil wood. Midcontinental RH was similar to modern conditions during the Last Glacial Maximum, progressively increased during the B{\o}lling-Aller{\o}d, peaked during the Younger-Dryas, and declined sharply during the early Holocene. This RH record suggests deglacial summers were cooler and characterized by greater advection of moisture-laden air-masses from the Gulf of Mexico and subsequent entrainment over the mid-continent by a high-pressure system over the Laurentide ice sheet. These patterns help explain the formation of dark-colored cumulic horizons in many Great Plains paleosol sequences and the development of no-analog vegetation types common to the Midwest during the last deglacial period. Likewise, reduced early Holocene RH and precipitation correspond with a diminished glacial high-pressure system during the latter stages of ice-sheet collapse.",
keywords = "Atmospheric circulation, B{\o}lling-Aller{\o}d, Glacial, Holocene, No-analog vegetation, Precipitation, Relative humidity, Stable isotope, Younger Dryas",
author = "Voelker, {Steven L.} and Stambaugh, {Michael C.} and Guyette, {Richard P.} and Xiahong Feng and Grimley, {David A.} and Steven Leavitt and Irina Panyushkina and Grimm, {Eric C.} and Marsicek, {Jeremiah P.} and Bryan Shuman and {Brandon Curry}, B.",
year = "2015",
month = "3",
day = "1",
doi = "10.1016/j.yqres.2015.01.001",
language = "English (US)",
volume = "83",
pages = "336--344",
journal = "Quaternary Research",
issn = "0033-5894",
publisher = "Academic Press Inc.",
number = "2",

}

TY - JOUR

T1 - Deglacial hydroclimate of midcontinental North America

AU - Voelker, Steven L.

AU - Stambaugh, Michael C.

AU - Guyette, Richard P.

AU - Feng, Xiahong

AU - Grimley, David A.

AU - Leavitt, Steven

AU - Panyushkina, Irina

AU - Grimm, Eric C.

AU - Marsicek, Jeremiah P.

AU - Shuman, Bryan

AU - Brandon Curry, B.

PY - 2015/3/1

Y1 - 2015/3/1

N2 - During the last deglaciation temperatures over midcontinental North America warmed dramatically through the Bølling-Allerød, underwent a cool period associated with the Younger-Dryas and then reverted to warmer, near modern temperatures during the early Holocene. However, paleo proxy records of the hydroclimate of this period have presented divergent evidence. We reconstruct summer relative humidity (RH) across the last deglacial period using a mechanistic model of cellulose and leaf water δ18O and δD combined with a pollen-based temperature proxy to interpret stable isotopes of sub-fossil wood. Midcontinental RH was similar to modern conditions during the Last Glacial Maximum, progressively increased during the Bølling-Allerød, peaked during the Younger-Dryas, and declined sharply during the early Holocene. This RH record suggests deglacial summers were cooler and characterized by greater advection of moisture-laden air-masses from the Gulf of Mexico and subsequent entrainment over the mid-continent by a high-pressure system over the Laurentide ice sheet. These patterns help explain the formation of dark-colored cumulic horizons in many Great Plains paleosol sequences and the development of no-analog vegetation types common to the Midwest during the last deglacial period. Likewise, reduced early Holocene RH and precipitation correspond with a diminished glacial high-pressure system during the latter stages of ice-sheet collapse.

AB - During the last deglaciation temperatures over midcontinental North America warmed dramatically through the Bølling-Allerød, underwent a cool period associated with the Younger-Dryas and then reverted to warmer, near modern temperatures during the early Holocene. However, paleo proxy records of the hydroclimate of this period have presented divergent evidence. We reconstruct summer relative humidity (RH) across the last deglacial period using a mechanistic model of cellulose and leaf water δ18O and δD combined with a pollen-based temperature proxy to interpret stable isotopes of sub-fossil wood. Midcontinental RH was similar to modern conditions during the Last Glacial Maximum, progressively increased during the Bølling-Allerød, peaked during the Younger-Dryas, and declined sharply during the early Holocene. This RH record suggests deglacial summers were cooler and characterized by greater advection of moisture-laden air-masses from the Gulf of Mexico and subsequent entrainment over the mid-continent by a high-pressure system over the Laurentide ice sheet. These patterns help explain the formation of dark-colored cumulic horizons in many Great Plains paleosol sequences and the development of no-analog vegetation types common to the Midwest during the last deglacial period. Likewise, reduced early Holocene RH and precipitation correspond with a diminished glacial high-pressure system during the latter stages of ice-sheet collapse.

KW - Atmospheric circulation

KW - Bølling-Allerød

KW - Glacial

KW - Holocene

KW - No-analog vegetation

KW - Precipitation

KW - Relative humidity

KW - Stable isotope

KW - Younger Dryas

UR - http://www.scopus.com/inward/record.url?scp=84925167480&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84925167480&partnerID=8YFLogxK

U2 - 10.1016/j.yqres.2015.01.001

DO - 10.1016/j.yqres.2015.01.001

M3 - Article

AN - SCOPUS:84925167480

VL - 83

SP - 336

EP - 344

JO - Quaternary Research

JF - Quaternary Research

SN - 0033-5894

IS - 2

ER -