Ocean Acidification, 2007-2008

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Abstract/Contents

Abstract: This raster dataset depicts the measurements of ocean acidification at global coverage. Changes in CO2 concentration alter the aragonite saturation state (ASS) of the ocean, among other chemical properties of seawater, and as ASS levels drop the ability of calcifying species such as corals, diatoms, and shelled invertebrates to create calcium carbonate structures declines. The global distribution of ASS values has been modeled at 1-degree resolution for pre-industrial (circa 1870) and modern times (2000-2009). We use the difference between these values as an estimate of the human-derived driver of changes in ocean acidification. This dataset is part of the Global Map of Human Impacts to Marine Ecosystems, a collection of data and analyses related to anthropogenic drivers of change in marine ecosystems.
Purpose: The goal of this research is to estimate and visualize the global impact that humans are having on the oceans' ecosystems.

Type of resource	cartographic, software, multimedia
Form	Raster Dataset
Place	Washington, D.C., US
Publisher	Science
Date valid	2007; 2008
Publication date	2008
Language	English
Digital origin	born digital
Map data	Scale not given. ; ESRI::54009 W 180°--E 180°/N 90°--S 90°, Scale not given ; EPSG::4326

Creator	National Center for Ecological Analysis and Synthesis

Subject	Ocean acidification
Subject	Environmental impact analysis
Subject	Earth
Subject	2007
Subject	2008
Subject	Environment
Subject	Oceans
Subject	Imagery and Base Maps
Subject	Earth (Planet)
Genre	Geospatial data
Genre	Cartographic dataset

Supplemental information	Please see supplimental online materials for more information.
WGS84 Cartographics	This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
Referenced by	Title A Global Map of Human Impact on Marine Ecosystems Associated with Halpern, Benjamin S. Walbridge, Shaun Selkoe, Kimberly A. Kappel, Carrie V. Micheli, Fiorenza D'Agrosa, Caterina Bruno, John F. Casey, Kenneth S. Ebert, Colin Fox, Helen E. Fujita, Rod Heinemann, Dennis Lenihan, Hunter S. Madin, Elizabeth M.P. Perry, Matthew T. Selig, Elizabeth R. Spalding, Mark Steneck, Robert Watson, Reg Imprint Science, 2008
Location	https://purl.stanford.edu/tg926kp6619

Use and reproduction: This item is in the public domain. There are no restrictions on use.
Copyright: This work is in the Public Domain, meaning that it is not subject to copyright.

Preferred citation: National Center for Ecologial Analysis and Synthesis. (2008) Ocean Acidification, 2007-2008. Science. Available at: http://purl.stanford.edu/tg926kp6619

A Global Map of Human Impacts to Marine Ecosystems

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