Product catalogue
Geoscience Australia Landsat Water Observation Statistics Collection 3
Background
These are the statistics generated from the DEA Water Observations (Water Observations from Space) suite of products, which gives summaries of how often surface water was observed by the Landsat satellites for various periods (per year, per season and for the period from 1986 to the present).
Water Observations Statistics (WO-STATS) provides information on how many times the Landsat satellites were able to clearly see an area, how many times those observations were wet, and what that means for the percentage of time that water was observed in the landscape.
What this product offers
Each dataset in this product consists of the following datasets:
- Clear Count: how many times an area could be clearly seen (i.e. not affected by clouds, shadows or other satellite observation problems)
- Wet Count: how many times water was detected inobservations that were clear
- Water Summary: what percentage of clear observations were detected as wet (i.e. the ratio of wet to clear as a percentage)
As no confidence filtering is applied to this product, it is affected by noise where misclassifications have occurred in the input water classifications, and can be difficult to interpret on its own. The confidence layer and filtered summary are contained in the Water Observations Filtered Statistics (WO-FILT-STATS) product, which provides a noise-reduced view of the all-of-time water summary.
WO-STATS is available in multiple forms, depending on the length of time over which the statistics are calculated. At present the following are available:
WO-STATS:statistics calculated from the full depth of time series (1986 to present)
WO-STATS-ANNUAL:statistics calculated from each calendar year (1986 to present)
WO-STATS-NOV-MAR:statistics calculated yearly from November to March (1986 to present)
WO-STATS-APR-OCT:statistics calculated yearly from April to October (1986 to present)
Simple
Identification info
- Date (Creation)
- 2021-10-08T12:04:55
- Date (Publication)
- 2022-02-16T03:17:42
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/146091
- Edition
-
3.1.6
- Citation identifier
- Digital Object Identifier/https://dx.doi.org/10.26186/146091
- Cited responsible party
-
Role Organisation / Individual Name Details Owner Commonwealth of Australia (Geoscience Australia)
Voice Author Mueller, N.
PSCD Internal Contact Publisher Commonwealth of Australia (Geoscience Australia)
Voice
- Point of contact
-
Role Organisation / Individual Name Details Resource provider Place, Space and Communities Division
External Contact Point of contact Glitsos, B.
Space Division Internal Contact
- Topic category
-
- Geoscientific information
Extent
))
Temporal extent
- Time period
- 1987-01-01
- Maintenance and update frequency
- As needed
Resource format
- Title
-
Product data repository: Various Formats
- Protocol
-
FILE:DATA-DIRECTORY
- Name of the resource
-
Data Store directory containing the digital product files
- Description
-
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- Theme
-
-
surface water
-
- Theme
-
-
water detection
-
- Theme
-
-
floods
-
- Theme
-
-
wetlands
-
- theme.ANZRC Fields of Research.rdf
-
-
EARTH SCIENCES
-
- Keywords
-
-
Published_External
-
Resource constraints
- Title
-
Creative Commons Attribution 4.0 International Licence
- Alternate title
-
CC-BY
- Edition
-
4.0
- Access constraints
- License
- Use constraints
- License
- Other constraints
-
CC BY Attribution 4.0 International License
Resource constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Associated resource
- Association Type
- null
- Title
-
DEA Water Observations Statistics (Landsat)
Identifier
- Description
-
CMI record for this data product
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
-
Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
-
Seasonal Water Summaries Apr-Oct periods since 1987
Seasonal Water Summaries Apr-Oct periods since 1987
- Distribution format
-
- OnLine resource
-
Seasonal Water Summaries Nov-Mar periods since 1987
Seasonal Water Summaries Nov-Mar periods since 1987
- Distribution format
-
- OnLine resource
-
Annual Water Summaries per Calendar Year since 1987
Annual Water Summaries per Calendar Year since 1987
- Distribution format
-
- OnLine resource
-
All-time Water Summary (Unfiltered) 1987 to present
All-time Water Summary (Unfiltered) 1987 to present
- Distribution format
-
Resource lineage
- Statement
-
These are the statistics generated from the DEA Water Observations (Water Observations from Space) suite of products, which gives summaries of how often surface water was observed by the Landsat satellites for various periods (per year, per season and for the period from 1986 to the present).
Water Observations Statistics (WO-STATS) provides information on how many times the Landsat satellites were able to clearly see an area, how many times those observations were wet, and what that means for the percentage of time that water was observed in the landscape.
- Hierarchy level
- Dataset
- Description
-
Please refer to the lineage section.
Reference System Information
- Reference system identifier
- EPSG/GDA94 (geocentric) (EPSG:4348)
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/de523a79-7f2b-4925-ba43-297f3580b36d
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Glitsos, B.
Space Division Internal Contact
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/146091
- Date info (Creation)
- 2021-10-08T12:04:55+11:00
- Date info (Revision)
- 2021-11-05T17:00:36+11:00
Metadata standard
- Title
-
AU/NZS ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-3
- Title
-
Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
-
Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551