Digital land use mapping in Oakland County, Michigan

ERTS-1 data for a portion of Oakland County, Michigan was computer processed to produce a map of water, urban areas, wooded areas, and other vegetation. Comparison with RB-57 photography of the area shows a good correspondence of the two sources of data. Preliminary evaluation indicates that this type of four-category map derived from ERTS data will be useful for conceptual studies of large geographic areas in recreational planning

Timber type separability in Southeastern United States on LANDSAT-1 MSS data

A quantitative, computer-aided study was made on the spectral separability of timber types and condition classes in the Southeastern United States, using LANDSAT-1 multispectral scanner data. It was concluded that LANDSAT-1 could be used effectively to discriminate the gross forest features of softwood, hardwood, and regeneration. The only significant detectable age difference would be between an established forest versus a young (or denuded) forest. The red or near infrared bands would be better for discrimination; phenological early and late spring data would be better than winter. And a temporal analysis would be superior to single-season analysis. Lastly, two spectral bands would be most cost effective for computer analysis. The study site was Sam Houston National Forest of East Texas, a typical forest in the Flatwoods Zone, Southern Region, U. S. Forest Service

Geography in Your Pocket

Grade Level(s): 5-81.Students are to learn from our current American quarter series featuring the states about the geographic, historical, recreational and cultural features that are featured on the quarters. 2.Students are to learn the locations of significant historical persons featured on the quarter series. 3. Students are to learn about plants of importance featured on the American quarter series. 4.Students are to learn about mineral resources and non living products of the states. 5.Students are to learn state geographic locations by outline shapes featured on the American quarter series. 6.Students are to learn values of Americans as featured on state mottos and slogans as featured on the American quarter series.Flora, IN; Carroll Jr/Sr Hig

New Strategies for Old Problems: The Fair Housing Act at 40, Symposium: New Strategies in Fair Housing

This article discusses the advances in fair housing since 1968 while analyzing the evidence of persistent discrimination and segregation. It looks at past strategies of the enforcement of the FHA by fair housing groups and the education and outreach performed by the groups. Additionally, the author provides commentary on the future of fair housing

Analysis of recreational land and open space using ERTS-1 data

There are no author-identified significant results in this report

Nationwide forestry applications program: Ten-Ecosystem Study (TES) site 5 report, Kershaw County, South Carolina, report 4

The author has identified the following significant results. The Kershaw County site, South Carolina, was selected to be representative of both the oak-pine ecosystem and the southeastern pine ecosystem. The following processing results have concluded that: (1) early spring LANDSAT data provide the best contrast between forest features; (2) level 2 forest features (softwood, hardwood, grassland, and water) can be classified with an accuracy of 70% + or - 5.7% at the 90% confidence level; (3) level 3 species classification was inconclusive; (4) temporal data did not provide a significant increase in classification accuracy of level 2 features, over single date classification to warrant the additional processing; and (5) training fields from only 10% of the site can be used to classify the entire site

Nationwide forestry applications program. Ten-Ecosystem Study (TES) site 1, Grand County, Colorado

There are no author-identified significant results in this report

Design Effects in the Transition to Web-Based Surveys

Innovation within survey modes should always be mitigated by concerns about survey quality and in particular sampling, coverage, nonresponse, and measurement error. This is as true today with the development of web surveying as it was in the 1970s when telephone surveying was being developed. This paper focuses on measurement error in web surveys. Although Internet technology provides significant opportunities for innovation in survey design, systematic research has yet to be conducted on how most of the possible innovations might affect measurement error, leaving many survey designers “out in the cold.” This paper summarizes recent research to provide an overview of how choosing the web mode affects the asking and answering of questions. It starts with examples of how question formats used in other survey modes perform differently in the web mode. It then provides examples of how the visual design of web surveys can influence answers in unexpected ways and how researchers can strategically use visual design to get respondents to provide their answers in a desired format. Finally, the paper concludes with suggested guidelines for web survey design

Incorporating patient preferences into cancer care decisions: Challenges and opportunities

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/156174/2/cncr32959_am.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/156174/1/cncr32959.pd

The Role of Email Communications in Determining Response Rates and Mode of Participation in a Mixed-mode Design

This article is concerned with the extent to which the propensity to participate in a web-face-to-face sequential mixed-mode survey is influenced by the ability to communicate with sample members by email in addition to mail. Researchers may be able to collect email addresses for sample members and to use them subsequently to send survey invitations and reminders. However, there is little evidence regarding the value of doing so. This makes it difficult to decide what efforts should be made to collect such information and how to subsequently use it efficiently. Using evidence from a randomized experiment within a large mixed-mode national survey, we find that using a respondent-supplied email address to send additional survey invites and reminders does not affect survey response rate but is associated with an increased proportion of responses by web rather than face to face and, hence, lower survey costs