United States Geological Survey (USGS), 2008 ERDAS Imagine http://pubs.usgs.gov/ds/366/index.html http://pubs.usgs.gov/ds/366/data.html Peter Dartnell Robert Collier Mark Buktenica Steven Jessup Scott Girdner Peter Triezenberg 2008 1.0 Data Series 366 Western Coastal and Marine Geology, Menlo Park, CA U.S. Geological Survey, Coastal and Marine Geology Program http://pubs.usgs.gov/ds/366/index.html ERDAS Imagine format data of the distribution of a submerged bryophyte mat in Crater Lake, OR These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) or other software to display the distribution of a submerged bryophyte mat in Crater Lake, OR. Information for USGS Coastal and Marine Geology related activities are online at <http://walrus.wr.usgs.gov/infobank/n/n106or/html/n-1-06-or.meta.html> 20040806 20080402 ground condition Complete As needed -122.16555054 -122.0498355 42.97851439 42.90490823 General Marine Geology Multibeam Bryophyte Mat Bathymetry Water Depth Ocean Floor Topography U.S. Geological Survey USGS Coastal and Marine Geology Program CMGP ISO 19115 Topic Category elevation inlandWaters imageryBaseMapsEarthCover Geographic Names Information System (GNIS) Crater Lake OR Oregon USA None Please recognize the U.S. Geological Survey (USGS), the National Park Service (NPS), Oregon State University (OSU), and Southern Oregon University (SOU) as the source of this information. USGS-authored or produced data and information are in the public domain. Peter Dartnell U.S. Geological Survey, Coastal and Marine Geology Physical Scientist mailing and physical address

345 Middlefield Rd MS-999

Menlo Park CA 94025-3561 USA (650) 329-5460 (650) 329-5411 pdartnell@usgs.gov http://pubs.usgs.gov/ds/366/images/moss_dist.jpg Illustration of moss distribution model in ERDAS Imagine format data set. JPEG Not applicable for raster data. Unspecified Complete 0.5 meters 0.05 percent of the water depth. Depths corrected to mean lower low water datum. U.S. Geological Survey 200103 raster digital data Menlo Park, CA U.S. Geological Survey http://wrgis.wr.usgs.gov/dds/dds-72/index.htm online 2001 publication date dds-72 base material The moss distribution model is based on 2000 multibeam bathmetry and acoustic backscatter data as well as 23 line kilometers of lake floor video collected in 2006. To map the bryophyte's distribution, depth range, acoustic backscatter intensity, and derived bathymetric index grids are used as inputs into a hierarchical decision-tree classification model. Observations of the presence or absence the bryophyte mat from the lake floor video were used as controls for the model. The final map was converted into ERDAS Imagine (.img) and geoTIFF (.tif) formats. 2006 Peter Dartnell U.S. Geological Survey, Coastal and Marine Geology Physical Scientist mailing and physical address

345 Middlefield Rd MS-999

Menlo Park CA 94025-3561 USA (650) 329-5460 (650) 329-5411 pdartnell@usgs.gov Raster Grid Cell Universal Transverse Mercator 10 0.9996 -123.00000 0.00000 500000.0 0.00 coordinate pair 2.0 2.0 Meters WGS84 WGS84 6378137.00 meters 0.003352811 MOSS_DIST.IMG is an ERDAS IMAGINE file with the following attributes: Cell Size = 2.000 Data Type: Integer Number of Rows = 4311 Number of Columns = 4709 BOUNDARY Xmin = 568094.347 Xmax = 577512.347 Ymin = 4750342.202 Ymax = 4758964.202 none U.S. Geological Survey, Information Services mailing and physical address

345 Middlefield Rd MS-532

Menlo Park CA 94025-3561 USA (650) 329-4309 N-1-06-OR data sets These data not intended for navigational purposes. Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, these data and information are provided with the understanding that they are not guaranteed to be usable, timely, accurate, or complete. Users are cautioned to consider carefully the provisional nature of these data and information before using them for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Conclusions drawn from, or actions undertaken on the basis of, such data and information are the sole responsibility of the user. Neither the U.S. Government nor any agency thereof, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any data, software, information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. Trade, firm, or product names and other references to non-USGS products and services are provided for information only and do not constitute endorsement or warranty, express or implied, by the USGS, USDOI, or U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy. ERDAS Imagine 9.0 none None 20080407 Peter Dartnell U.S. Geological Survey, Coastal and Marine Geology Physical Scientist mailing and physical address

345 Middlefield Rd MS-999

Menlo Park CA 94025-3561 USA (650) 329-5460 (650) 329-5411 pdartnell@usgs.gov Content Standard for Digital Geospatial Metadata ("CSDGM version 2") FGDC-STD-001-1998 universal time