NOAA AVHRR satellite data provides landfast sea ice coverage and variability along the Adelie Land coast in East Antarctica. The dataset includes 881 cloud-free AVHRR images selected from 10,297 processed scans, covering the period from 1992 to 1999. AU_AADC compiled the data, derived from NOAA AVHRR and other satellite imagery.
Use Cases
- Analyze fast ice area variability using Ice Surface Temperature (IST) maps derived from AVHRR brightness temperature bands.
- Track changes in the distance between the penguin colony at Point Geologie and open water using geospatial coordinates.
- Model synoptic-scale formation and break-up events of landfast ice from the time series of cloud-free satellite images.
- Compare sea ice signatures from different sensors by integrating AVHRR, DMSP OLS, and Argon surveillance satellite data.
- Identify old ice versus newly-formed ice using pixel-level rules based on IST and brightness temperature differences.
Strengths
- 881 cloud-free AVHRR images selected for analysis from 10,297 processed scans.
- Time series covers 8 years from 1992 to 1999.
- Multi-source integration includes DMSP OLS and Argon satellite imagery.
Limitations
- Cloud cover limited data collection, requiring selection of clear days.
- Temporal coverage ends in 1999, lacking recent data.
- Analysis involves user intervention and manual correction steps, potentially introducing subjectivity.
Provenance
- Source
- AU_AADC, utilizing NOAA AVHRR, DMSP OLS, and US Argon surveillance satellite data.
- Collection Method
- Derived from satellite imagery processed using the Common AVHRR Processing System (CAPS) and multi-step manual analysis.
- Time Range
- 1992-01-01 to 1999-12-31
- Freshness
- Data collection ended on 1999-12-31.
- Geography
- Adelie Land coast, East Antarctica, centered around Casey Station (66.28°S, 110.53°E).