Glacier Bay Murrelet Survey Raw Observations for 2012

Raw field observations of murrelet bird groups collected during 2012 surveys in Glacier Bay, Alaska. Data were recorded directly into a geodatabase via a custom application on laptops and iPads, and are stored in their original, unedited form. The dataset includes observations, their relation to line transects, covariates, tracklogs, and GPS points.

Use Cases

• Modeling murrelet habitat selection based on covariates collected during surveys.
• Analyzing spatial distribution of bird groups relative to line transects.
• Assessing survey effort and coverage using GPS tracklogs and points.
• Comparing raw field data with quality-controlled versions for methodological research.

Strengths

• Data are stored in their original raw form, providing a traceable record of field observations.
• Includes multiple related data types: observations, covariates, tracklogs, and GPS points.
• Collected via a standardized custom application for ArcGIS, suggesting consistent field protocols.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Department of the Interior

Collection Method

Field surveys with data recorded directly into an ArcGIS file geodatabase via a custom application.

Time Range

2012

Freshness

Last updated 2026 03 04 01:12:50.837359; freshness should be verified.

Geography

Glacier Bay, Alaska