Data

Seasonal ground cover statistics - Landsat, JRSRP algorithm, QLD coverage

Name: Seasonal ground cover statistics - Landsat, JRSRP algorithm, QLD coverage
Published: 2021

Terrestrial Ecosystem Research Network

Joint Remote Sensing Research Program

Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]

ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/86c19d64-7cfe-4557-a874-479d024ac1b5&rft.title=Seasonal ground cover statistics - Landsat, JRSRP algorithm, QLD coverage&rft.identifier=http://geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/86c19d64-7cfe-4557-a874-479d024ac1b5&rft.publisher=Terrestrial Ecosystem Research Network&rft.description=This product has been superseded and will not be processed from early 2023. Please find the updated version 3 of this product at https://portal.tern.org.au/metadata/24071. Long term temporal statistic products derived from the seasonal ground cover product for each fraction. Statistics include: 5th percentile minimum, mean, median, 95th percentile maximum, standard deviation and observation count. There is one raster image for each season and each bare and green fraction for the full time series of imagery available. Min/max (5th and 95th percentile) products are also made for each fraction using all seasonal ground cover images available.Landsat surface reflectance data > multiple single-date fractional cover datasets > seasonal composite of fractional cover > seasonal persistent green > seasonal composite of ground cover > seasonal ground cover statisticsData CreationMethods: The long-term statistical summary products are derived from the seasonal ground cover product https://portal.tern.org.au/seasonal-ground-cover-australia-coverage/22022, also produced by the QLD DES remote sensing centre. The statistical products are derived from the full time series of imagery available for each season, defined by standard calendar seasons. For each pixel, the following statistics are calculated: 5th percentile, mean, median, 95th percentile, standard deviation and count.Seasonal Statistics - 6 Band images: band 1 – 5th percentile minimum - robust minimum value for that pixel over the length of the full time series for that season only (percentage + 100) band 2 - mean value for pixel over full time series for that season only (percentage + 100) band 3 – median value for pixel over full time series for that season only (percentage + 100) band 4 – 95th percentile maximum - robust maximum value for that pixel over the length of the full time series for that season only (percentage + 100) band 5 – Standard deviation - the temporal standard deviation of the full time-series for that season only band 6 – Count - the number of observations statistics for that pixel are based on for that season only. The first 4 bands are recorded with a scaling factor of 100 for data management purposes (to ensure there are no negative values in the image). To interpret the values correctly it is necessary to subtract 100 from the values in these bands.Min/Max Statistics - 2 Band images: A two band image is produced for the Min/Max for full time series: band 1 – 5th percentile minimum - robust minimum value for that pixel over the length of the full time series (percentage + 100) band 2 - 95th percentile maximum - robust maximum value for that pixel over the length of the full time series (percentage + 100)Progress Code: superseded&rft.creator=Joint Remote Sensing Research Program &rft.date=2021&rft.edition=1.0&rft.relation=https://www.publications.qld.gov.au/dataset/ad30c88c-185d-4d9a-9971-69968f958a70/resource/350aeffd-ff8f-4876-a12f-7eb8d4e6f991/download/coverundertreesreportrp64gfinal.pdf&rft.relation=https://doi.org/10.1080/14498596.2010.521977&rft.relation=https://doi.org/10.1201/b10275&rft.relation=https://doi.org/10.1016/j.rse.2006.09.019&rft.relation=https://doi.org/10.3390/rs5126481&rft.relation=https://doi.org/10.3390/rs5010083&rft.relation=https://www.researchgate.net/publication/236022381_Field_measurement_of_fractional_ground_cover&rft.coverage=Queensland&rft.coverage=northlimit=-10.574222; southlimit=-29.036961; westlimit=137.900391; eastLimit=154.643555; projection=EPSG:4326&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/by/4.0&rft_rights=&rft_rights=Copyright 2010-2021. JRSRP. Rights owned by the Joint Remote Sensing Research Project (JRSRP).&rft_rights=While every care is taken to ensure the accuracy of this information, the Joint Remote Sensing Research Project (JRSRP) makes no representations or warranties about its accuracy, reliability, completeness or suitability for any particular purpose and disclaims all responsibility and all liability (including without limitation, liability in negligence) for all expenses, losses, damages (including indirect or consequential damage) and costs which might be incurred as a result of the information being inaccurate or incomplete in any way and for any reason.&rft_rights=It is not recommended that these data sets be used at scales more detailed than 1:100,000.&rft_rights=TERN services are provided on an “as-is” and “as available” basis. Users use any TERN services at their discretion and risk. They will be solely responsible for any damage or loss whatsoever that results from such use including use of any data obtained through TERN and any analysis performed using the TERN infrastructure. <br />Web links to and from external, third party websites should not be construed as implying any relationships with and/or endorsement of the external site or its content by TERN.<br />Please advise any work or publications that use this data via the online form at https://www.tern.org.au/research-publications/#reporting&rft_subject=environment&rft_subject=imageryBaseMapsEarthCover&rft_subject=VEGETATION COVER&rft_subject=LAND USE/LAND COVER&rft_subject=EARTH SCIENCE&rft_subject=LAND SURFACE&rft_subject=SOILS&rft_subject=ENVIRONMENTAL SCIENCE AND MANAGEMENT&rft_subject=ENVIRONMENTAL SCIENCES&rft_subject=ECOLOGICAL APPLICATIONS&rft_subject=LANDSAT-5&rft_subject=LANDSAT-7&rft_subject=LANDSAT-8&rft_subject=TM&rft_subject=ETM+&rft_subject=OLI&rft_subject=bare soil fraction (Percent)&rft_subject=Percent&rft_subject=photosynthetic vegetation fraction (Percent)&rft_subject=non-photosynthetic vegetation fraction (Percent)&rft_subject=30 meters - < 100 meters&rft_subject=Monthly - < Annual&rft.type=dataset&rft.language=English Access the data

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Seasonal ground cover statistics Download data
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Licence & Rights:

Open Licence view details

Creative Commons Attribution 4.0 International Licence
http://creativecommons.org/licenses/by/4.0

While every care is taken to ensure the accuracy of this information, the Joint Remote Sensing Research Project (JRSRP) makes no representations or warranties about its accuracy, reliability, completeness or suitability for any particular purpose and disclaims all responsibility and all liability (including without limitation, liability in negligence) for all expenses, losses, damages (including indirect or consequential damage) and costs which might be incurred as a result of the information being inaccurate or incomplete in any way and for any reason.

It is not recommended that these data sets be used at scales more detailed than 1:100,000.

TERN services are provided on an “as-is” and “as available” basis. Users use any TERN services at their discretion and risk. They will be solely responsible for any damage or loss whatsoever that results from such use including use of any data obtained through TERN and any analysis performed using the TERN infrastructure.
Web links to and from external, third party websites should not be construed as implying any relationships with and/or endorsement of the external site or its content by TERN.
Please advise any work or publications that use this data via the online form at https://www.tern.org.au/research-publications/#reporting

Access:

Open view details

unclassified

Contact Information

Street Address:
Terrestrial Ecosystem Research Network
Building 1019, 80 Meiers Rd
QLD 4068
Australia
Ph: +61 7 3365 9097

esupport@tern.org.au

Brief description

This product has been superseded and will not be processed from early 2023. Please find the updated version 3 of this product at https://portal.tern.org.au/metadata/24071. Long term temporal statistic products derived from the seasonal ground cover product for each fraction. Statistics include: 5th percentile minimum, mean, median, 95th percentile maximum, standard deviation and observation count. There is one raster image for each season and each bare and green fraction for the full time series of imagery available. Min/max (5th and 95th percentile) products are also made for each fraction using all seasonal ground cover images available.

Notes

Supplemental Information
Processing stage:
djl - bare min/max all seasons
djm - green min/max all seasons
djn - dry min/max all seasons

djo - summer stats
djp- autumn stats
djq- winter stats
djr- spring stats

Lineage

Landsat surface reflectance data > multiple single-date fractional cover datasets > seasonal composite of fractional cover > seasonal persistent green > seasonal composite of ground cover > seasonal ground cover statistics

Data Creation
Methods: The long-term statistical summary products are derived from the seasonal ground cover product https://portal.tern.org.au/seasonal-ground-cover-australia-coverage/22022, also produced by the QLD DES remote sensing centre. The statistical products are derived from the full time series of imagery available for each season, defined by standard calendar seasons. For each pixel, the following statistics are calculated: 5th percentile, mean, median, 95th percentile, standard deviation and count.
Seasonal Statistics - 6 Band images: band 1 – 5th percentile minimum - robust minimum value for that pixel over the length of the full time series for that season only (percentage + 100)
band 2 - mean value for pixel over full time series for that season only (percentage + 100)
band 3 – median value for pixel over full time series for that season only (percentage + 100)
band 4 – 95th percentile maximum - robust maximum value for that pixel over the length of the full time series for that season only (percentage + 100)
band 5 – Standard deviation - the temporal standard deviation of the full time-series for that season only
band 6 – Count - the number of observations statistics for that pixel are based on for that season only.
The first 4 bands are recorded with a scaling factor of 100 for data management purposes (to ensure there are no negative values in the image). To interpret the values correctly it is necessary to subtract 100 from the values in these bands.

Min/Max Statistics - 2 Band images: A two band image is produced for the Min/Max for full time series:
band 1 – 5th percentile minimum - robust minimum value for that pixel over the length of the full time series (percentage + 100)
band 2 - 95th percentile maximum - robust maximum value for that pixel over the length of the full time series (percentage + 100)

Progress Code: superseded

Notes

Credit
We at TERN acknowledge the Traditional Owners and Custodians throughout Australia, New Zealand and all nations. We honour their profound connections to land, water, biodiversity and culture and pay our respects to their Elders past, present and emerging.
This dataset was produced by the Joint Remote Sensing Research Program (https://www.jrsrp.org.au/) using data sourced from US Geological Survey.

Purpose
These products display the variation of the seasonal ground cover fractions over long term temporal periods (e.g. 1990-2016).

Data Quality Information

Data Quality Assessment Scope
local : dataset
The input imagery was processed to level L1T by the USGS. Geodetic accuracy of the product depends on the image quality and the accuracy, number, and distribution of the ground control points. The fractional cover model was compared to samples drawn from 1500 field reference sites.

Data Quality Assessment Result
local : Quality Result
The USGS aims to provide image-to-image registration with an accuracy of 12m. Refer to the L8 Data Users Handbook for more detail.The fractional cover model achieved an overall model Root Mean Squared Error (RMSE) of 11.6% against field reference sites.

Created: 2015-09-18

Issued: 2021-09-22

Modified: 2024-09-23

Data time period: 1990-01-01

This dataset is part of a larger collection

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text: Queensland

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Other Information

Point-of-truth metadata URL

uri : https://geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/86c19d64-7cfe-4557-a874-479d024ac1b5 External Link

Identifiers

URI : geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/86c19d64-7cfe-4557-a874-479d024ac1b5
global : 86c19d64-7cfe-4557-a874-479d024ac1b5

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