Record Details
Field | Value |
---|---|
Title | Interpreting variations in Secchi disk transparencies of Crater Lake: a deep caldera lake |
Creator | Larson, Gary L. |
Date | [198-?] 2009-03-20 2009-05-11 |
Subject | Water quality -- Oregon -- Crater Lake -- Measurement; Limnology -- Oregon -- Crater Lake; Crater Lake National Park (Oregon); |
Description | ill.; Caption title; Includes bibliographical references; Abstract Maximum Secchi disk depth readings of 40 m and 39 m in Crater Lake were recorded in 1937 and 1969, respectively. Disk readings from 1978 to 1987 indicated an apparent decline in lake clarity, although some readings were in the high 30 m range. In this paper, Secchi disk readings of the lake were evaluated relative to seasonal and annual variations and how variations of chlorophyll, primary production, and phytoplankton effected the readings. Considerable temporal variation was... |
Source | Original document is: Interpreting variations in Secchi disk transparencies of Crater Lake; (Corvallis, Or.: Oregon State University, College of Forestry, National Park Service, Cooperative Park Studies Unit, [198-?]); 20 p.: 28 cm. |
Contributor | Oregon State University, College of Forestry, National Park Service, Cooperative Park Studies Unit Hurley, Michael; United States. ?b National Park Service; Crater Lake National Park (Agency : U.S.) |
Publisher | Oregon Institute of Technology. Library |
Relation | Digital reproduction of: http://www.worldcat.org/oclc/320567698 Mode of access: Adobe Acrobat Reader |
Type | text |
Format | application/pdf; PDF file size: 1,454,080 bytes Master file format: image/tiff; master file size: 673,218,560 bytes; bit depth: 24; color mode: color; resolution: 600 dpi; capture hardware: (fill in scanner name from CLDRC Checklist) Fujitsu FI-4750C or Plustek OpticBook 3600; optimization software: Adobe Photoshop CS3 |
Language | eng; |
Rights | Digital image copyright 2008. Oregon Institute of Technology. All rights reserved. http://digitallib.oit.edu/cdm/copyright/collection/craterlake |
Identifier | UOOL-27-Mar-2009-147 http://digitallib.oit.edu/cdm/ref/collection/craterlake/id/145 |