Cool idea. Thanks.

I am curious if other studies (other than Baker's GLO studies) have addressed spatial bias in tree-ring networks, i.e. sample sites are placed where lots of scarred trees are available, but it is difficult to address what happened in places that lack scars. Gridded sampling helps for sure.

To address the precedent in a longer term context, the paleo record, in Scott Mensing's cool study of large charcoal particles accumulating in the Santa Barbara basin, shows that large Santa Ana fires have been occurring for at least 560 yrs. doi.org/10.1006/qres...

This is a resinous piece of lodgepole pine wood from an Oregon beach cliff that is radiocarbon-dead, which I turned into a necklace.

Pb-210 dating will tell. Tailings dumped in a river and washed into a lake with winter storms.

There were lots of proglacial lakes in all the valleys of the Cascades and Olympics. Just to add another layer on the map!

But sea level...global sea level is overprinted by land elevation changes. For example, Sequim was below sea level after ice retreat. 10.1016/j.quascirev.2014.05.022
10.1016/j.quascirev.2008.12.022

I think this is very worthwhile! I made the ice sheet by intersecting ice elevations (I think from Porter and Swanson, Quaternary Research) with modern topography. But should be checked with glacial landforms. There is a nice poster map made by DNR using lidar data.

My amateur cartography. With lower sea level. But isostatic effects were substantial too.

And pre-meeting social Monday evening (March 17) at the Museum of Natural and Cultural History.