2019-20 Honours project - Patterns and trends of frontal activity in Australian marine hotspots
This record contains:
1. Thesis
2. The MATLAB codes of the adaptive Canny gradient-based edge detection algorithm and calculating frontal probability/density (for AVHRR data and MODIS data separately).
3. Frontal probability (probability of frontal encounter, PFE) and frontal density (FD) data over Australian hotspot regions (for AVHRR data and MODIS data separately)
4. Results of the Mann-Kendall trend test
The purpose of this study is to verify the regional trends of frontal activity within the two marine hotspots near Australia and compare the performance of the two edge detection algorithms.
Simple
Identification info
- Date (Creation)
- 2020-08-30
Principal investigator
Collaborator
- Credit
- IMAS Honours Student Program 2019-2020
- Status
- Completed
Owner
Point of contact
- Topic category
-
- Oceans
Extent
Temporal extent
- Time period
- 2019-07-10 2020-08-14
- Maintenance and update frequency
- Not planned
- Keywords (Theme)
-
- FRONTAL PROBABILITY
- FRONTAL DENSITY
- NASA/GCMD Keywords, Version 8.5
- Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research
- Keywords (Theme)
-
- Annual probability of frontal encounter (PFE) over the South East Australia hotspot (AVHRR data, Canny method)
- Annual probability of frontal encounter (PFE) over the South West Australia hotspot (AVHRR data, Canny method)
- Monthly probability of frontal encounter (PFE) over the South East Australia hotspot (AVHRR data, Canny method)
- Monthly probability of frontal encounter (PFE) over the South West Australia hotspot (AVHRR data, Canny method)
- 6-day average frontal density (FD) over the South East Australia hotspot (AVHRR data, Canny method)
- 6-day average frontal density (FD) over the South West Australia hotspot (AVHRR data, Canny method)
- Annual probability of frontal encounter (PFE) over the South East Australia hotspot (MODIS data, Canny method)
- Annual probability of frontal encounter (PFE) over the South West Australia hotspot (MODIS data, Canny method)
- Monthly probability of frontal encounter (PFE) over the South East Australia hotspot (MODIS data, Canny method)
- Monthly probability of frontal encounter (PFE) over the South West Australia hotspot (MODIS data, Canny method)
- 6-day average frontal density (FD) over the South East Australia hotspot (MODIS data, Canny method)
- 6-day average frontal density (FD) over the South West Australia hotspot (MODIS data, Canny method)
- Annual probability of frontal encounter (PFE) over the South East Australia hotspot (AVHRR data, Cayula and Cornillon method)
Resource constraints
- Classification
- Unclassified
Resource constraints
- Use limitation
- The data described in this record are the intellectual property of the University of Tasmania through the Institute for Marine and Antarctic Studies.
Resource constraints
- Linkage
-
http://i.creativecommons.org/l/by/4.0/88x31.png
License Graphic
- Title
- Creative Commons Attribution 4.0 International License
- Website
-
http://creativecommons.org/licenses/by/4.0/
License Text
- Other constraints
- The citation in a list of references is: citation author name/s (year metadata published), metadata title. Citation author organisation/s. File identifier and Data accessed at (add http link).
- Language
- English
- Character encoding
- UTF8
Content Information
- Content type
- Physical measurement
- Name
-
Annual probability of frontal encounter (PFE) over the South East Australia hotspot (AVHRR data, Canny method)
- Name
-
AannualSE
- Name
- probability
- Name
-
Annual probability of frontal encounter (PFE) over the South West Australia hotspot (AVHRR data, Canny method)
- Name
-
AannualSW
- Name
- probability
- Name
-
Monthly probability of frontal encounter (PFE) over the South East Australia hotspot (AVHRR data, Canny method)
- Name
-
AmonthSE
- Name
- probability
- Name
-
Monthly probability of frontal encounter (PFE) over the South West Australia hotspot (AVHRR data, Canny method)
- Name
-
AmonthSW
- Name
- probability
- Name
-
6-day average frontal density (FD) over the South East Australia hotspot (AVHRR data, Canny method)
- Name
-
AfdSE
- Name
- density
- Name
-
6-day average frontal density (FD) over the South West Australia hotspot (AVHRR data, Canny method)
- Name
-
AfdSW
- Name
- density
- Name
-
Annual probability of frontal encounter (PFE) over the South East Australia hotspot (MODIS data, Canny method)
- Name
-
MannualSE
- Name
- probability
- Name
-
Annual probability of frontal encounter (PFE) over the South West Australia hotspot (MODIS data, Canny method)
- Name
-
MannualSW
- Name
- probability
- Name
-
Monthly probability of frontal encounter (PFE) over the South East Australia hotspot (MODIS data, Canny method)
- Name
-
MmonthSE
- Name
- probability
- Name
-
Monthly probability of frontal encounter (PFE) over the South West Australia hotspot (MODIS data, Canny method)
- Name
-
MmonthSW
- Name
- probability
- Name
-
6-day average frontal density (FD) over the South East Australia hotspot (MODIS data, Canny method)
- Name
-
MfdSE
- Name
- density
- Name
-
6-day average frontal density (FD) over the South West Australia hotspot (MODIS data, Canny method)
- Name
-
MfdSW
- Name
- density
- Name
-
Annual probability of frontal encounter (PFE) over the South East Australia hotspot (AVHRR data, Cayula and Cornillon method)
- Name
-
AannualSE0
- Name
- probability
Distribution Information
- Distribution format
-
-
Microsoft Excel
-
Microsoft Excel
Resource lineage
- Statement
- This study used two daytime sea surface temperature (SST) products (AVHRR and MODIS) to define marine thermal fronts. AVHRR SST product was obtained by Australia's Integrated Marine Observing System (IMOS) from the National Oceanic and Atmospheric Administration (NOAA) Advanced Very High-Resolution Radiometer (AVHRR) on all available NOAA Polar-orbiting Operational Environmental Satellites (POES). It was downloaded from the Australia Ocean Data Network (AODN). It is a six-day average SST product and with 1.1 km spatial resolution. Time ranged from 1993 to 2018. MODIS SST product with a 4×4 km spatial resolution was obtained from the NASA EOSDIS Physical Oceanography Distributed Active Archive Center (PO.DAAC) from NASA’s Moderate Resolution Imaging Spectroradiometer (MODIS) on the Aqua satellite. It is an eight-day average SST product. Time ranged from 2003 to 2018 Two algorithms were used to define marine thermal fronts: the adaptive Canny gradient-based edge detection algorithm and the Cayula and Cornillon single image edge detection (SIED) algorithm. The detected frontal maps were used to calculate the probability of frontal encounter (PFE) and frontal density (FD). The application of the Cayula and Cornillon SIED method was achieved by using an available ArcGIS Toolbox (Marine Geospatial Ecology Tools, MGET), so it won't be involved in this record.
- Hierarchy level
- Dataset
Metadata
- Metadata identifier
-
fffaa8dd-46a6-40a8-91c9-e001055025fb
- Language
- English
- Character encoding
- UTF8
Point of contact
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/fffaa8dd-46a6-40a8-91c9-e001055025fb
Point of truth URL of this metadata record
- Date info (Creation)
- 2020-10-19T16:52:13
- Date info (Revision)
- 2020-10-19T16:52:13
Metadata standard
- Title
- ISO 19115-3:2018