Author: richards

The Origin Story for Horizontal Levees

A fundamental premise of the most Louisiana coastal restoration plans, including the Master Plan, is that coastal salt marsh acts as a horizontal levee, reducing hurricane surge for each mile of marsh. The primary source that is usually cited for…

Geoengineering Policy Resources

http://agupubs.onlinelibrary.wiley.com/hub/issue/10.1002/(ISSN)2328-4277.GEOENGIN1/ Reflecting upon 10 Years of Geoengineering Research: Introduction to the Crutzen + 10 Special Issue “Ten years ago, Nobel laureate Paul Crutzen called for research into the possibility of reflecting sunlight away from Earth by injecting sulfur particles into the stratosphere.…

Arctic Report Card: Update for 2016

J. Richter-Menge, J. E. Overland, and J. T. Mathis, Eds., 2016: Arctic Report Card 2016, http://www.arctic.noaa.gov/Report-Card. Highlights The average surface air temperature for the year ending September 2016 is by far the highest since 1900, and new monthly record highs…

EPA Rejects Corps EIS for Columbia River Coal Terminal

millennium-bulk-terminals-nepa-eis The U.S. Environmental Protection Agency has reviewed the U.S. Army Corps of Engineers’ September 2016 Millennium Bulk Terminals – Longview Draft Environmental Impact Statement (Corps DEIS), (EPA Region 10 Project Number: 13-0034-COE). We conducted our review according to EPA’s…

Sea Level Rise Threatens Major US Navel Bases

Kelly A Burks-Copes et al., Risk Quantification for Sustaining Coastal Military Installation Asset and Mission Capabilities (RC-1701) (2014). (original link) Objective The objective of this project was to develop and test a risk-based methodology to evaluate threats to critical installation assets…

What is a 100/500/1000 year rain event?

See Also: What is a 100/500/1000-Year Flood Event? References Hershfield, D.M., 1961. Rainfall Frequency Atlas of the United States, Technical Paper No. 40. Weather Bureau, US Department of Commerce, Washington, DC. This started the 100 year rain event system. Although it…

Mississippi River Flood History

The record of Mississippi River floods goes back to the earliest explorers: High Flows and Flood History on the Lower Mississippi River Below Red River Landing, LA (1543­ – Present) and the paleoclimate records show megafloods greatly exceeding even the 1927 flood: Brown,…

Cape Wind Energy Project

This is a project to develop off-shore wind off Cape Cod. It’s relevance to the Louisiana Coast is that the appeals court ruled that the EIS was incomplete because there was not sufficient geological information about the sea bottom and…