clim.site.par: Climatological site parameters

In EarthSystemDiagnostics/proxysnr: Separate Signal and Noise in Climate Proxy Records

Description

A dataset containing the climatological site parameters that are relevant for the diffusion length calculation for all firn-core sites used in Münch and Laepple (2018).

Usage

clim.site.par

Format

A data frame with 20 rows and 5 variables:

core:

the name of the firn-core site

temperature:

10-m firn temperature (or annual mean air temperature), in degree Celsius

acc.rate:

accumulation rate, in kg/m^2/yr

pressure:

surface air pressure, in mbar

height:

surface elevation, in m

Source

All values for firn cores in the rows 1-15 from Oerter et al. (2000) (Table 1, 4), except: temperature for FB9807 adapted from B32 (1 km), temperature for FB9815 adapted from FB9805 (28 km), temperature for FB9811 adapted from FB9812 (19 km).

For firn cores in the rows 16-20, accumulation rates and elevation data are for core WDC2005A taken from WAIS Divide Project Members (2013) (p.440) and for the other cores from Kaspari et al. (2004) (Table 1), respectively. WDC2005A temperature is taken from WAIS Divide Project Members (2013) (p.440), the other temperature values are based on ERA-Interim mean temperature anomalies (Dee et al., 2011) with respect to WDC2005A.

For all cores, the pressure values are calculated with the barometric formula using the local elevation and temperature data.

References

Dee, D. P., et al.: The ERA-Interim reanalysis: configuration and performance of the data assimilation system, Q. J. R. Meteorol. Soc., 137(656), 553–597, https://doi.org/10.1002/qj.828, 2011.

Kaspari, S., et al.: Climate variability in West Antarctica derived from annual accumulation-rate records from ITASE firn/ice cores, Ann. Glaciol., 39(1), 585-594, https://doi.org/10.3189/172756404781814447, 2004.

Münch, T. and Laepple, T.: What climate signal is contained in decadal- to centennial-scale isotope variations from Antarctic ice cores? Clim. Past, 14, 2053–2070, https://doi.org/10.5194/cp-14-2053-2018, 2018.

Oerter, H., et al.: Accumulation rates in Dronning Maud Land, Antarctica, as revealed by dielectric-profiling measurements of shallow firn cores, Ann. Glaciol., 30(1), 27-34, 2000.

WAIS Divide Project Members: Onset of deglacial warming in West Antarctica driven by local orbital forcing, Nature, 500(7463), 440–444, https://doi.org/10.1038/nature12376, 2013.

EarthSystemDiagnostics/proxysnr documentation built on Oct. 2, 2021, 3:03 p.m.