Results 1 to 10 of about 597,547 (288)

Marginal ice zone fraction benchmarks sea ice and climate model skill. [PDF]

open access: yesNat Commun, 2021
AbstractGlobal climate models (GCMs) consistently underestimate the response of September Arctic sea-ice area (SIA) to warming. Modeled SIA losses are highly correlated to global mean temperature increases, making it challenging to gauge if improvements in modeled sea ice derive from improved sea-ice models or from improvements in forcing driven by ...
Horvat C.
europepmc   +5 more sources

Ice-core data used for the construction of the Greenland Ice-Core Chronology 2005 and 2021 (GICC05 and GICC21) [PDF]

open access: yesEarth System Science Data, 2023
We here describe, document, and make available a wide range of data sets used for annual-layer identification in ice cores from DYE-3, GRIP, NGRIP, NEEM, and EGRIP.
S. O. Rasmussen   +18 more
doaj   +1 more source

A first chronology for the East Greenland Ice-core Project (EGRIP) over the Holocene and last glacial termination [PDF]

open access: yesClimate of the Past, 2020
This paper provides the first chronology for the deep ice core from the East Greenland Ice-core Project (EGRIP) over the Holocene and the late last glacial period.
S. Mojtabavi   +28 more
doaj   +1 more source

Is our dynamical understanding of the circulation changes associated with the Antarctic ozone hole sensitive to the choice of reanalysis dataset? [PDF]

open access: yesAtmospheric Chemistry and Physics, 2021
This study quantifies differences among four widely used atmospheric reanalysis datasets (ERA5, JRA-55, MERRA-2, and CFSR) in their representation of the dynamical changes induced by springtime polar stratospheric ozone depletion in the Southern ...
A. Orr   +5 more
doaj   +1 more source

Magnitude, frequency and climate forcing of global volcanism during the last glacial period as seen in Greenland and Antarctic ice cores (60–9 ka) [PDF]

open access: yesClimate of the Past, 2022
Large volcanic eruptions occurring in the last glacial period can be detected by their accompanying sulfuric acid deposition in continuous ice cores. Here we employ continuous sulfate and sulfur records from three Greenland and three Antarctic ice cores ...
J. Lin   +18 more
doaj   +1 more source

Ice thickness and volume of the Renland Ice Cap, East Greenland

open access: yesJournal of Glaciology, 2021
To assess the amount of ice volume stored in glaciers or ice caps, a method to estimate ice thickness distribution is required for glaciers where no direct observations are available.
Iben Koldtoft   +3 more
doaj   +1 more source

Observations from C-Band SAR Fully Polarimetric Parameters of Mobile Sea Ice Based on Radar Scattering Mechanisms to Support Operational Sea Ice Monitoring

open access: yesCanadian Journal of Remote Sensing, 2022
Fully polarimetric (FP) SAR systems offer parameters that describe and quantify the scattering mechanisms from the surface cover. These are usually derived from decomposition of matrices derived from the original scattering matrix from observations at ...
Mohammed Shokr   +4 more
doaj   +1 more source

A portable lightweight in situ analysis (LISA) box for ice and snow analysis [PDF]

open access: yesThe Cryosphere, 2021
There are enormous costs involved in transporting snow and ice samples to home laboratories for “simple” analyses in order to constrain annual layer thicknesses and identify accumulation rates of specific sites.
H. A. Kjær   +11 more
doaj   +1 more source

A 120,000-year long climate record from a NW-Greenland deep ice core at ultra-high resolution

open access: yesScientific Data, 2021
Measurement(s) isotope analysis • water ice core Technology Type(s) cavity ring-down spectroscopy Factor Type(s) δ18O • δD Sample Characteristic - Location Greenland Ice Sheet Machine-accessible metadata file describing the reported data: https://doi.org/
Vasileios Gkinis   +28 more
doaj   +1 more source

Canadian forest fires, Icelandic volcanoes and increased local dust observed in six shallow Greenland firn cores [PDF]

open access: yesClimate of the Past, 2022
Greenland ice cores provide information about past climate. Few impurity records covering the past 2 decades exist from Greenland. Here we present results from six firn cores obtained during a 426 km long northern Greenland traverse made in 2015 between ...
H. A. Kjær   +7 more
doaj   +1 more source

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