Australian gridded chloride deposition-rate dataset

Data in Brief

Russell Crosbie¹  Warrick Dawes²  Tristan Louth-Robins³  Matthias Raiber³  Phil Davies³  Lei Gao⁴  Andy Wilkins⁵ 

[1] Corresponding author.;CSIRO Land and Water, GPO Box 2583, Brisbane, Qld 4001, Australia;CSIRO Land and Water, Locked Bag 2, Glen Osmond SA 5064, Australia;CSIRO Land and Water, Private Bag 5, Wembley WA 6913, Australia;CSIRO Mineral Resources, Queensland Centre for Advanced Technologies, PO Box 883, Kenmore, Qld 4069, Australia;

关键词: Atmospheric chemistry;    Chloride mass balance;    Groundwater recharge;    Hydrochemistry;    Rainfall;   

DOI  :  

来源: DOAJ

【 摘 要 】

Chloride deposition-rate measurements at points within Australia are upscaled to the entire continent on a regular 0.05° grid. The upscaling uses a double-exponential correlation between deposition rate and distance to the coast, where the parameters in the double-exponential are spatially varying. These parameters are estimated using least-squares with Tikhonov regularisation to ensure minimal spatial variability. A calibration-constrained, null-space Monte-Carlo analysis is used to quantify uncertainty in the prediction. The resulting dataset consists of the best-fit chloride deposition rates across Australia, as well as estimates of uncertainty. The dataset can be used for various purposes including: estimating groundwater recharge through the use of the chloride mass-balance method; catchment salt balance estimates; regional investigations of groundwater hydrochemistry; and, corrosion prediction.

【 授权许可】

Unknown