Pliocene Research, Interpretation and Synoptic Mapping (PRISM4) Active
By Florence Bascom Geoscience Center
October 18, 2018
PRISM will help distinguish the USGS as a world leader in paleoclimate research, data generation and delivery for use in addressing the modern world's climate-related needs. We will be recognized for the passion of our researchers and partners in providing quality, innovative paleoclimate interpretation and data analysis to the science (climate change) community and to the public we serve.
Sources/Usage: Public Domain. View Media Details
Introduction
Background
Work Plans
Publications
Data Products
Gallery
People
PlioMIP2
Below are USGS publications associated with this project. For a full list of PRISM related publications, CLICK HERE.
Filter Total Items: 39
Impact of a permanent El Niño (El Padre) and Indian Ocean Dipole in warm Pliocene climates
Pliocene sea surface temperature data, as well as terrestrial precipitation and temperature proxies, indicate warmer than modern conditions in the eastern equatorial Pacific and imply permanent El Niño–like conditions with impacts similar to those of the 1997/1998 El Niño event. Here we use a general circulation model to examine the global-scale effects that result from imposing warm tropical sea
Authors
Sonali P. Shukla, Mark A. Chandler, Jeff Jonas, Linda E. Sohl, Ken Mankoff, Harry J. Dowsett
Comparison of mid-Pliocene climate predictions produced by the HadAM3 and GCMAM3 General Circulation Models
The mid-Pliocene warm period (ca. 3 to 3.3??million years ago) has become an important interval of time for palaeoclimate modelling exercises, with a large number of studies published during the last decade. However, there has been no attempt to assess the degree of model dependency of the results obtained. Here we present an initial comparison of mid-Pliocene climatologies produced by the Goddard
Authors
A.M. Haywood, M.A. Chandler, P.J. Valdes, U. Salzmann, D.J. Lunt, H.J. Dowsett
Pliocene three-dimensional global ocean temperature reconstruction
A snapshot of the thermal structure of the mid-Piacenzian ocean is obtained by combining the Pliocene Research, Interpretation and Synoptic Mapping Project (PRISM3) multiproxy sea-surface temperature (SST) reconstruction with bottom water tempera-5 ture estimates produced using Mg/Ca paleothermometry. This reconstruction assumes a Pliocene water mass framework similar to that which exists today, w
Authors
H.J. Dowsett, M.M. Robinson, K.M. Foley
Surface temperatures of the Mid-Pliocene North Atlantic Ocean: Implications for future climate
The Mid-Pliocene is the most recent interval in the Earth's history to have experienced warming of the magnitude predicted for the second half of the twenty-first century and is, therefore, a possible analogue for future climate conditions. With continents basically in their current positions and atmospheric CO2 similar to early twenty-first century values, the cause of Mid-Pliocene warmth remains
Authors
Harry J. Dowsett, Mark A. Chandler, Marci M. Robinson
Pliocene role in assessing future climate impacts
[No abstract available]
Authors
M.M. Robinson, H.J. Dowsett, M.A. Chandler
Reevaluation of mid-Pliocene North Atlantic sea surface temperatures
Multiproxy temperature estimation requires careful attention to biological, chemical, physical, temporal, and calibration differences of each proxy and paleothermometry method. We evaluated mid-Pliocene sea surface temperature (SST) estimates from multiple proxies at Deep Sea Drilling Project Holes 552A, 609B, 607, and 606, transecting the North Atlantic Drift. SST estimates derived from faunal as
Authors
Marci M. Robinson, Harry J. Dowsett, Gary S. Dwyer, Kira T. Lawrence
The PRISM palaeoclimate reconstruction and Pliocene sea-surface temperature
In this paper, I present a summary of the Pliocene Research, Interpretation and Synoptic Mapping (PRISM) palaeoenvironmental reconstruction, with emphasis on its historical development and range of boundary condition datasets. Sea-surface temperature (SST), sea level, sea ice, land cover (vegetation and ice) and topography are discussed as well as many of the assumptions required to create an inte
Authors
H.J. Dowsett
Faunal re-evaluation of Mid-Pliocene conditions in the western equatorial Pacific
Mid-Pliocene low-latitude Pacific faunal (planktic foraminifer) sea surface temperature (SST) estimates are normally based upon the Modern Analog Technique (MAT). In the Eastern equatorial Pacific (EEP), where upwelling of cool water predominates, MAT can be used to discern both cooling and warming in Neogene records. SST today is ???30??C in the western equatorial Pacific (WEP) warm pool, the upp
Authors
H. Dowsett
PRISM3 DOT1 Atlantic Basin Reconstruction
PRISM3 DOT1 (Pliocene Research, Interpretation and Synoptic Mapping 3, Deep Ocean Temperature 1) provides a three-dimensional temperature reconstruction for the mid-Pliocene Atlantic basin, the first of several regional data sets that will comprise a global mid-Pliocene reconstruction. DOT1 is an alteration of modern temperature values for the Atlantic Ocean in 4 degree x 5 degree cells in 13 dept
Authors
Harry Dowsett, Marci Robinson, Gary S. Dwyer, Mark Chandler, Thomas Cronin
Middle Pliocene sea surface temperature variability
Estimates of sea surface temperature (SST) based upon foraminifer, diatom, and ostracod assemblages from ocean cores reveal a warm phase of the Pliocene between about 3.3 and 3.0 Ma. Pollen records and plant megafossils, although not as well dated, show evidence for a warmer climate at about the same time. Increased greenhouse forcing and altered ocean heat transport are the leading candidates for
Authors
H.J. Dowsett, M.A. Chandler, T. M. Cronin, Gary S. Dwyer
Bracketing mid-pliocene sea surface temperature: maximum and minimum possible warming
Estimates of sea surface temperature (SST) from ocean cores reveal a warm phase of the Pliocene between about 3.3 and 3.0 Mega-annums (Ma). Pollen records from land based cores and sections, although not as well dated, also show evidence for a warmer climate at about the same time. Increased greenhouse forcing and altered ocean heat transport is the leading candidates for the underlying cause of
Authors
Harry Dowsett
Middle Pliocene paleoenvironmental reconstruction; PRISM2
No abstract available.
Authors
H.J. Dowsett, J.A. Barron, R. Z. Poore, R.S. Thompson, T. M. Cronin, S. E. Ishman, D. A. Willard
Below are PRISM4D collaborating institutions.
- Overview
PRISM will help distinguish the USGS as a world leader in paleoclimate research, data generation and delivery for use in addressing the modern world's climate-related needs. We will be recognized for the passion of our researchers and partners in providing quality, innovative paleoclimate interpretation and data analysis to the science (climate change) community and to the public we serve.
Sources/Usage: Public Domain. View Media DetailsPRISM3 site locations - Click the image to learn more! (Public Domain, USGS.) Introduction
Background
Work Plans
Publications
Data Products
Gallery
People
PlioMIP2
- Publications
Below are USGS publications associated with this project. For a full list of PRISM related publications, CLICK HERE.
Filter Total Items: 39Impact of a permanent El Niño (El Padre) and Indian Ocean Dipole in warm Pliocene climates
Pliocene sea surface temperature data, as well as terrestrial precipitation and temperature proxies, indicate warmer than modern conditions in the eastern equatorial Pacific and imply permanent El Niño–like conditions with impacts similar to those of the 1997/1998 El Niño event. Here we use a general circulation model to examine the global-scale effects that result from imposing warm tropical seaAuthorsSonali P. Shukla, Mark A. Chandler, Jeff Jonas, Linda E. Sohl, Ken Mankoff, Harry J. DowsettComparison of mid-Pliocene climate predictions produced by the HadAM3 and GCMAM3 General Circulation Models
The mid-Pliocene warm period (ca. 3 to 3.3??million years ago) has become an important interval of time for palaeoclimate modelling exercises, with a large number of studies published during the last decade. However, there has been no attempt to assess the degree of model dependency of the results obtained. Here we present an initial comparison of mid-Pliocene climatologies produced by the GoddardAuthorsA.M. Haywood, M.A. Chandler, P.J. Valdes, U. Salzmann, D.J. Lunt, H.J. DowsettPliocene three-dimensional global ocean temperature reconstruction
A snapshot of the thermal structure of the mid-Piacenzian ocean is obtained by combining the Pliocene Research, Interpretation and Synoptic Mapping Project (PRISM3) multiproxy sea-surface temperature (SST) reconstruction with bottom water tempera-5 ture estimates produced using Mg/Ca paleothermometry. This reconstruction assumes a Pliocene water mass framework similar to that which exists today, wAuthorsH.J. Dowsett, M.M. Robinson, K.M. FoleySurface temperatures of the Mid-Pliocene North Atlantic Ocean: Implications for future climate
The Mid-Pliocene is the most recent interval in the Earth's history to have experienced warming of the magnitude predicted for the second half of the twenty-first century and is, therefore, a possible analogue for future climate conditions. With continents basically in their current positions and atmospheric CO2 similar to early twenty-first century values, the cause of Mid-Pliocene warmth remainsAuthorsHarry J. Dowsett, Mark A. Chandler, Marci M. RobinsonPliocene role in assessing future climate impacts
[No abstract available]AuthorsM.M. Robinson, H.J. Dowsett, M.A. ChandlerReevaluation of mid-Pliocene North Atlantic sea surface temperatures
Multiproxy temperature estimation requires careful attention to biological, chemical, physical, temporal, and calibration differences of each proxy and paleothermometry method. We evaluated mid-Pliocene sea surface temperature (SST) estimates from multiple proxies at Deep Sea Drilling Project Holes 552A, 609B, 607, and 606, transecting the North Atlantic Drift. SST estimates derived from faunal asAuthorsMarci M. Robinson, Harry J. Dowsett, Gary S. Dwyer, Kira T. LawrenceThe PRISM palaeoclimate reconstruction and Pliocene sea-surface temperature
In this paper, I present a summary of the Pliocene Research, Interpretation and Synoptic Mapping (PRISM) palaeoenvironmental reconstruction, with emphasis on its historical development and range of boundary condition datasets. Sea-surface temperature (SST), sea level, sea ice, land cover (vegetation and ice) and topography are discussed as well as many of the assumptions required to create an inteAuthorsH.J. DowsettFaunal re-evaluation of Mid-Pliocene conditions in the western equatorial Pacific
Mid-Pliocene low-latitude Pacific faunal (planktic foraminifer) sea surface temperature (SST) estimates are normally based upon the Modern Analog Technique (MAT). In the Eastern equatorial Pacific (EEP), where upwelling of cool water predominates, MAT can be used to discern both cooling and warming in Neogene records. SST today is ???30??C in the western equatorial Pacific (WEP) warm pool, the uppAuthorsH. DowsettPRISM3 DOT1 Atlantic Basin Reconstruction
PRISM3 DOT1 (Pliocene Research, Interpretation and Synoptic Mapping 3, Deep Ocean Temperature 1) provides a three-dimensional temperature reconstruction for the mid-Pliocene Atlantic basin, the first of several regional data sets that will comprise a global mid-Pliocene reconstruction. DOT1 is an alteration of modern temperature values for the Atlantic Ocean in 4 degree x 5 degree cells in 13 deptAuthorsHarry Dowsett, Marci Robinson, Gary S. Dwyer, Mark Chandler, Thomas CroninMiddle Pliocene sea surface temperature variability
Estimates of sea surface temperature (SST) based upon foraminifer, diatom, and ostracod assemblages from ocean cores reveal a warm phase of the Pliocene between about 3.3 and 3.0 Ma. Pollen records and plant megafossils, although not as well dated, show evidence for a warmer climate at about the same time. Increased greenhouse forcing and altered ocean heat transport are the leading candidates forAuthorsH.J. Dowsett, M.A. Chandler, T. M. Cronin, Gary S. DwyerBracketing mid-pliocene sea surface temperature: maximum and minimum possible warming
Estimates of sea surface temperature (SST) from ocean cores reveal a warm phase of the Pliocene between about 3.3 and 3.0 Mega-annums (Ma). Pollen records from land based cores and sections, although not as well dated, also show evidence for a warmer climate at about the same time. Increased greenhouse forcing and altered ocean heat transport is the leading candidates for the underlying cause ofAuthorsHarry DowsettMiddle Pliocene paleoenvironmental reconstruction; PRISM2
No abstract available.AuthorsH.J. Dowsett, J.A. Barron, R. Z. Poore, R.S. Thompson, T. M. Cronin, S. E. Ishman, D. A. Willard - Partners
Below are PRISM4D collaborating institutions.