Printed from the TERN Data Discovery portalhttp://portal.tern.org.au/climate-adjusted-seasonal-qld-coverage/22981?viewer=information?viewer=information
154.5,-9.5 154.5,-29 138,-29 138,-9.5 154.5,-9.522981
The climate adjusted linear seasonal persistent green trend is derived from analysis of the linear seasonal persistent green trend, adjusted for rainfall. The current version is based on the 1987-2014 period.
Seasonal persistent green cover is derived from seasonal cover using a weighted smooth spline fitting routine. This weights a smooth line to the minimum values of the seasonal green cover. This smooth minimum is designed to represent the slower changing green component, ideally consisting of perennial vegetation including over-storey, mid-storey and persistent ground cover. The seasonal persistent green is then summarised using simple linear regression, and the slope of the fitted line is captured in the linear seasonal persistent green product. This product is further processed to produce a climate-adjusted version.
This dataset was produced in partnership with the Joint Remote Sensing Research Program using Landsat 5 TM, Landsat 7 ETM+ and Landsat 8 OLI satellite data sourced from the US Geological Survey.
Changes in persistent green are the effects of many different drivers - climate, fire history, land use change, management change. The relationship between rainfall and vegetation growth in particular is widely accepted, with many remote sensing studies examining the relationship between various remotely sensed vegetation indices to rainfall. This product attempts to relate antecedent rainfall conditions to temporal patterns in vegetation cover in order to examine the residual trends, which we assume to be largely a product of other influences.
This climate adjusted seasonal persistent green trend product can be used to explain the residual changes in the persistent green product, which is expected to be a result of anthropogenic influences. For the impact of climate on persistent green, see the linear persistent green trend product.
Landsat surface reflectance data > multiple single-date fractional cover datasets > seasonal composite of fractional cover > seasonal persistent green product > linear seasonal persistent green trend > climate adjusted seasonal persistent green trend
From 1989-12-01 To 2014-12-31
How to cite this collection:
Department of Environment and Science, Queensland Government (2021): Climate adjusted seasonal persistent green trend - Landsat, QLD DES algorithm, QLD coverage. Version 1.0.0. Terrestrial Ecosystem Research Network (TERN). Dataset. https://portal.tern.org.au/climate-adjusted-seasonal-qld-coverage/22981
This data can be accessed from the following websites
Creative Commons Attribution 4.0 International Licence
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