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Home About Description of Indicators Summary
 

Description of Indicators Summary

Lake Tahoe pier image Indicator Summaries are used to organize and concisely convey the current status and trends of each Numerical Threshold Standard-related indicator and indicators related to Management Standards with numerical targets. The following is a brief description of reporting elements included in the Indicator Summaries of each web page.

Reporting Icon – the reporting icon that was designed to succinctly communicate the status of each indicator relative to the applicable standard or interim target, the trend of the indicator relative to the standard or target, and the level of confidence the Agency has in the determination of status and trend. The possible combinations of status, trend, and confidence determinations in the reporting icon are illustrated HERE. The determination of status, trend, and confidence for each numeric indicator is based on criteria summarized in Chapter 2 of the Draft 2011 Threshold Evaluation Report.

  • Status – the background color of the reporting icon is used to characterize the status of an indicator relative to an adopted standard or interim target
  • Trend – an arrow and its orientation are used to convey an indicator’s trend relative to an adopted standard or interim target
  • Confidence – the ring surrounding the status dot and trend arrow is used to convey the level of confidence the agency has in the determination of both status and trend. A thicker ring represents higher confidence in the determination, while a dashed ring represents lower confidence

Data Evaluation and Interpretation Box – provides a summary of required reporting elements and supporting narrative for indicator status and trend determinations. The following elements are included in the Data Evaluation and Interpretation Box.

  • Relevance – describes the reasons why it is important to measure and analyze the status and trend of an indicator. Generally, the relevance of an indicator is based on its ability to inform us about the status of a Threshold Standard, and/or a standard based on state or federal standards that aim to protect human health or environmental quality.
  • Status – describes the current status of the indicator relative to the standard(s)addressed in the Indicator Summary and the supporting rationale for the status determination. Details on methods used to determine status are included in Chapter 2 of the Draft 2011 Threshold Evaluation Report.
  • Trend – describes the magnitude and direction of change associated with the indicator through time relative to the standard. This section may also include a description of long-term versus more recent trends to explore potential effects of significant policy or management events in the Tahoe Region (e.g., adoption of the Regional Plan) or major trajectory shifts. The narrative also provides a rationale for the trend determination. Details on methods used to determine trend are included in Chapter 2 of the Draft 2011 Threshold Evaluation Report.
  • Confidence – describes how much confidence there was in the determination of status and trend, and reasons why the confidence level was assigned. Details on methods used to determine confidence are included in Chapter 2 of the Draft 2011 Threshold Evaluation Report.

Human & Environmental Drivers – briefly describes the known human and natural factors and activities that influence the Region’s ability to meet the adopted Threshold Standard or otherwise influence the variation in an indicator.

Monitoring Approach – provides a general description of the sampling design used to carry out the monitoring effort. Included is a description of the spatial distribution of sampling effort, sampling frequency, lab procedures (as appropriate), and references to data sources, monitoring plans, and/or protocols used to guide monitoring.

Monitoring Partners – provides a list of agencies and/or entities that fund, collect and/or analyze monitoring data.

Note: aggregations used to characterize overall status, trend and confidence were intended to provide an overview representation of status, trend and confidence at the Indicator Reporting Category level and should not be interpreted as a determination of “attainment” status. Attainment status is determined at the more fine-grained scale of the standard.

 

 

Last Updated on Wednesday, 25 July 2012 15:36  

Status and Trends