A selection of new climate related research articles

On SkepticalScience.org 20 October 2017

by Ari Jokimäki (Format edited for easier online reading)

The figure is from paper #79.Climate change

A selection of new climate related research articles is shown below.

1. Channelized Melting Drives Thinning Under a Rapidly Melting Antarctic Ice Shelf

“High-resolution altimetry measurements from 2010 to 2016 show that Dotson Ice Shelf (DIS), West Antarctica, thins in response to basal melting focused along a single 5 km-wide and 60 km-long channel extending from the ice shelf’s grounding zone to its calving front.

If focused thinning continues at present rates, the channel will melt through, and the ice shelf collapse, within 40–50 years, almost two centuries before collapse is projected from the average thinning rate.”

2. Revisiting the cause of the 1989-2009 Arctic surface warming using the surface energy budget: downward infrared radiation dominates the surface fluxes

“The Arctic has been warming faster than elsewhere, especially during the cold season. According to the leading theory, ice-albedo feedback warms the Arctic Ocean during the summer, and the heat gained by the ocean is released during the winter, causing the cold-season warming.

Screen and Simmonds (2010; SS10) concluded that the theory is correct by comparing trend patterns in surface air temperature (SAT), surface turbulence heat flux (HF) and net surface infrared radiation (IR). However, in this comparison, downward IR is more appropriate to use.

By analyzing the same data used in SS10 using the surface energy budget, it is shown here that over most of the Arctic the skin temperature trend, which closely resembles the SAT trend, is largely accounted for by the downward IR, not the HF, trend.”

Read more…

Source: https://www.skepticalscience.com/new_research_20171009.html