From 870d52e3fe7aef7055e6ac19c4307396887dd053 Mon Sep 17 00:00:00 2001 From: Erin Telfer Date: Fri, 3 Jul 2026 12:46:46 +1000 Subject: [PATCH 1/5] Update _data.yaml --- .../dea-water-observations-statistics-landsat/_data.yaml | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/docs/data/product/dea-water-observations-statistics-landsat/_data.yaml b/docs/data/product/dea-water-observations-statistics-landsat/_data.yaml index 9a75e7359..23b126b49 100644 --- a/docs/data/product/dea-water-observations-statistics-landsat/_data.yaml +++ b/docs/data/product/dea-water-observations-statistics-landsat/_data.yaml @@ -16,7 +16,7 @@ spatial_data_type: RASTER spatial_coverage: null temporal_coverage_start: null temporal_coverage_end: null -temporal_coverage_custom: "1986/1987 to 2025 (see `Technical information <./?tab=description#technical-information>`_)" +temporal_coverage_custom: "1986/1987 to 2025/2026 (see `Technical information <./?tab=description#technical-information>`_)" data_update_frequency: YEARLY data_update_activity: ONGOING @@ -72,7 +72,7 @@ access_links_web_services: null access_links_custom: - type: map link: https://maps.dea.ga.gov.au/#share=s-x0R0IFIqxSFDJ54LK6sFDEfjh6i - name: Multi-year summary on DEA Maps + name: Multi-Year summary on DEA Maps - type: map link: https://maps.dea.ga.gov.au/#share=s-yIyPPjQlWxVBLg10WJBQd8KrMgt name: Apr-Oct summaries on DEA Maps @@ -93,10 +93,10 @@ access_links_custom: - type: data link: https://data.dea.ga.gov.au/?prefix=derivative/ga_ls_wo_fq_myear_3/2-1-0/ - name: Multi-year summary 1986 to near present - AWS access + name: Multi-Year summary 1986 to near present - AWS access - type: data link: https://thredds.nci.org.au/thredds/catalog/jw04/ga_ls_wo_fq_myear_3/catalog.html - name: Multi-year summary 1986 to near present - NCI access + name: Multi-Year summary 1986 to near present - NCI access - type: data link: https://data.dea.ga.gov.au/?prefix=derivative/ga_ls_wo_fq_apr_oct_3/2-0-0/ name: Apr-Oct summaries - AWS access From afa811dfe5060612287285c0798cc77a751b583b Mon Sep 17 00:00:00 2001 From: Erin Telfer Date: Fri, 3 Jul 2026 02:56:04 +0000 Subject: [PATCH 2/5] Update WO summary product information --- .../_description.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/docs/data/product/dea-water-observations-statistics-landsat/_description.md b/docs/data/product/dea-water-observations-statistics-landsat/_description.md index 2d35d6e4b..1fd325621 100644 --- a/docs/data/product/dea-water-observations-statistics-landsat/_description.md +++ b/docs/data/product/dea-water-observations-statistics-landsat/_description.md @@ -1,6 +1,6 @@ ## 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 1987 to 2025). +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 1986/1987 to 2025/2026). 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. @@ -29,7 +29,7 @@ WO-STATS is available in multiple forms, depending on the length of time over wh * **DEA WO Multi-Year:** `ga_ls_wo_fq_myear_3`: statistics calculated from the full depth of time series (1987 to 2025) unfiltered * **DEA WO Calendar Year:** `ga_ls_wo_fq_cyear_3`: statistics calculated from each calendar year (1986 to 2025) -* **DEA WO November to March:** `ga_ls_wo_fq_nov_mar_3`: statistics calculated yearly from November to March (1987 to March 2025) +* **DEA WO November to March:** `ga_ls_wo_fq_nov_mar_3`: statistics calculated yearly from November to March (1987 to March 2026) * **DEA WO April to October:** `ga_ls_wo_fq_apr_oct_3`: statistics calculated yearly from April to October (1986 to October 2025) In addition, a confidence-filtered Multi-Year Summary is under development, which will contain a confidence layer and subsequent filtered water frequency layer. This provides a noise-reduced view of the unfiltered multi-year summary. @@ -50,7 +50,7 @@ For example, the November to March 2020–2021 season is reported with a central This product is created from the WO water classification (Water Observations (Landsat)). Every pixel location is analysed statistically to derive the count of clear observations, the count of clear-wet observations and then to calculate the percentage of clear observations that were also wet. This provides a 'normalised' water frequency product for all of Australia. -Each product within the WO-STATS set is derived from the available Landsat observations within the respective period: calendar years; Apr-Oct each year; Nov-Mar each year; multiple years (1987 to 2025). +Each product within the WO-STATS set is derived from the available Landsat observations within the respective period: calendar years; Apr-Oct each year; Nov-Mar each year; multiple years (1986/1987 to 2025/2026). To create the confidence layer required for the filtered product, a logistic regression is created between the un-filtered product and information about terrain, built-up areas, and coarse national water observations. In this way the confidence reflects the likelihood that the observed water is scientifically feasible at every pixel. From b2a8979e94b3990ea0e347eb79822e711861a957 Mon Sep 17 00:00:00 2001 From: Erin Telfer Date: Fri, 3 Jul 2026 03:03:25 +0000 Subject: [PATCH 3/5] updating WO KH --- .../dea-water-observations-statistics-landsat/_history.md | 5 +++++ .../dea-water-observations-statistics-landsat/_overview_1.md | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/docs/data/product/dea-water-observations-statistics-landsat/_history.md b/docs/data/product/dea-water-observations-statistics-landsat/_history.md index 5d3a26c72..b6d6feaa5 100644 --- a/docs/data/product/dea-water-observations-statistics-landsat/_history.md +++ b/docs/data/product/dea-water-observations-statistics-landsat/_history.md @@ -3,6 +3,11 @@ :::{include} ../../../_components/tech-alert-terrestrial-2025-annual-product-update-summary.md ::: +### July 2026: Latest updates + +Water Observation Statistics (Nov – Mar) was updated with seasonal data (period: November 2025 to March 2026). + + ### 9 Apr 2026: Latest updates * DEA WO Multi-Year (`ga_ls_wo_fq_myear_3`) was updated from version 2.0.0 to 2.1.0. (The other three products remain on version 2.0.0: `ga_ls_wo_fq_cyear_3`, `ga_ls_wo_fq_nov_mar_3`, `ga_ls_wo_fq_apr_oct_3`.) diff --git a/docs/data/product/dea-water-observations-statistics-landsat/_overview_1.md b/docs/data/product/dea-water-observations-statistics-landsat/_overview_1.md index 088ebb058..e0d4fa336 100644 --- a/docs/data/product/dea-water-observations-statistics-landsat/_overview_1.md +++ b/docs/data/product/dea-water-observations-statistics-landsat/_overview_1.md @@ -1,6 +1,6 @@ ## About -Digital Earth Australia (DEA) Water Observations uses an algorithm to classify each pixel from Landsat satellite imagery as ‘wet’, ‘dry’ or ‘invalid’. Combining the classified pixels into summaries, covering a year, season, or multiple years (since 1987) gives the information on where water is usually, and where it is rarely. +Digital Earth Australia (DEA) Water Observations uses an algorithm to classify each pixel from Landsat satellite imagery as ‘wet’, ‘dry’ or ‘invalid’. Combining the classified pixels into summaries, covering a year, season, or multiple years (since 1986/1987) gives the information on where water is usually, and where it is rarely. :::{admonition} This version includes breaking changes :class: note From abacb89bdbc1b639d9078005fdef1ea42b45bc49 Mon Sep 17 00:00:00 2001 From: Erin Telfer Date: Fri, 3 Jul 2026 15:22:11 +1000 Subject: [PATCH 4/5] Update KH for Seasonal WO product update --- .../dea-water-observations-statistics-landsat/_description.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/data/product/dea-water-observations-statistics-landsat/_description.md b/docs/data/product/dea-water-observations-statistics-landsat/_description.md index 1fd325621..2558007ed 100644 --- a/docs/data/product/dea-water-observations-statistics-landsat/_description.md +++ b/docs/data/product/dea-water-observations-statistics-landsat/_description.md @@ -1,6 +1,6 @@ ## 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 1986/1987 to 2025/2026). +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 multi-year period from 1987 to 2025). 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. @@ -50,7 +50,7 @@ For example, the November to March 2020–2021 season is reported with a central This product is created from the WO water classification (Water Observations (Landsat)). Every pixel location is analysed statistically to derive the count of clear observations, the count of clear-wet observations and then to calculate the percentage of clear observations that were also wet. This provides a 'normalised' water frequency product for all of Australia. -Each product within the WO-STATS set is derived from the available Landsat observations within the respective period: calendar years; Apr-Oct each year; Nov-Mar each year; multiple years (1986/1987 to 2025/2026). +Each product within the WO-STATS set is derived from the available Landsat observations within the respective period: calendar years; Apr-Oct each year; Nov-Mar each year; multiple years (1987 to 2025). To create the confidence layer required for the filtered product, a logistic regression is created between the un-filtered product and information about terrain, built-up areas, and coarse national water observations. In this way the confidence reflects the likelihood that the observed water is scientifically feasible at every pixel. From e97d39795b9f2debaba16a83e4b6e1b7992ac31b Mon Sep 17 00:00:00 2001 From: Erin Telfer Date: Fri, 3 Jul 2026 05:29:00 +0000 Subject: [PATCH 5/5] "add WO id to history tab" --- .../dea-water-observations-statistics-landsat/_history.md | 2 +- .../dea-water-observations-statistics-landsat/_overview_1.md | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/data/product/dea-water-observations-statistics-landsat/_history.md b/docs/data/product/dea-water-observations-statistics-landsat/_history.md index b6d6feaa5..46c3eac65 100644 --- a/docs/data/product/dea-water-observations-statistics-landsat/_history.md +++ b/docs/data/product/dea-water-observations-statistics-landsat/_history.md @@ -5,7 +5,7 @@ ### July 2026: Latest updates -Water Observation Statistics (Nov – Mar) was updated with seasonal data (period: November 2025 to March 2026). +Water Observation Statistics (Nov – Mar) (`ga_ls_wo_fq_nov_mar_3`) was updated with seasonal data (period: November 2025 to March 2026). ### 9 Apr 2026: Latest updates diff --git a/docs/data/product/dea-water-observations-statistics-landsat/_overview_1.md b/docs/data/product/dea-water-observations-statistics-landsat/_overview_1.md index e0d4fa336..088ebb058 100644 --- a/docs/data/product/dea-water-observations-statistics-landsat/_overview_1.md +++ b/docs/data/product/dea-water-observations-statistics-landsat/_overview_1.md @@ -1,6 +1,6 @@ ## About -Digital Earth Australia (DEA) Water Observations uses an algorithm to classify each pixel from Landsat satellite imagery as ‘wet’, ‘dry’ or ‘invalid’. Combining the classified pixels into summaries, covering a year, season, or multiple years (since 1986/1987) gives the information on where water is usually, and where it is rarely. +Digital Earth Australia (DEA) Water Observations uses an algorithm to classify each pixel from Landsat satellite imagery as ‘wet’, ‘dry’ or ‘invalid’. Combining the classified pixels into summaries, covering a year, season, or multiple years (since 1987) gives the information on where water is usually, and where it is rarely. :::{admonition} This version includes breaking changes :class: note