Reviews and syntheses

Australian vegetation phenology: New insights from satellite remote sensing and digital repeat photography

Caitlin E. Moore, Tim Brown, Trevor F. Keenan, Remko A. Duursma, Albert I J M Van Dijk, Jason Beringer, Darius Culvenor, Bradley Evans, Alfredo Huete, Lindsay B. Hutley, Stefan Maier, Natalia Restrepo-Coupe, Oliver Sonnentag, Alison Specht, Jeffrey R. Taylor, Eva Van Gorsel, Michael J. Liddell

    Research output: Contribution to journalReview articleResearchpeer-review

    6 Downloads (Pure)

    Abstract

    Phenology is the study of periodic biological occurrences and can provide important insights into the influence of climatic variability and change on ecosystems. Understanding Australia's vegetation phenology is a challenge due to its diverse range of ecosystems, from savannas and tropical rainforests to temperate eucalypt woodlands, semiarid scrublands, and alpine grasslands. These ecosystems exhibit marked differences in seasonal patterns of canopy development and plant life-cycle events, much of which deviates from the predictable seasonal phenological pulse of temperate deciduous and boreal biomes. Many Australian ecosystems are subject to irregular events (i.e. drought, flooding, cyclones, and fire) that can alter ecosystem composition, structure, and functioning just as much as seasonal change. We show how satellite remote sensing and ground-based digital repeat photography (i.e. phenocams) can be used to improve understanding of phenology in Australian ecosystems. First, we examine temporal variation in phenology on the continental scale using the enhanced vegetation index (EVI), calculated from MODerate resolution Imaging Spectroradiometer (MODIS) data. Spatial gradients are revealed, ranging from regions with pronounced seasonality in canopy development (i.e. tropical savannas) to regions where seasonal variation is minimal (i.e. tropical rainforests) or high but irregular (i.e. arid ecosystems). Next, we use time series colour information extracted from phenocam imagery to illustrate a range of phenological signals in four contrasting Australian ecosystems. These include greening and senescing events in tropical savannas and temperate eucalypt understorey, as well as strong seasonal dynamics of individual trees in a seemingly static evergreen rainforest. We also demonstrate how phenology links with ecosystem gross primary productivity (from eddy covariance) and discuss why these processes are linked in some ecosystems but not others. We conclude that phenocams have the potential to greatly improve the current understanding of Australian ecosystems. To facilitate the sharing of this information, we have formed the Australian Phenocam Network (http://phenocam.org.au/).

    Original languageEnglish
    Pages (from-to)5085-5102
    Number of pages18
    JournalBiogeosciences
    Volume13
    Issue number17
    DOIs
    Publication statusPublished - 13 Sep 2016

    Fingerprint

    photography
    phenology
    remote sensing
    vegetation
    synthesis
    ecosystems
    ecosystem
    rainforest
    savanna
    savannas
    tropical rain forests
    canopy
    seasonal variation
    eddy covariance
    vegetation index
    moderate resolution imaging spectroradiometer
    biome
    cyclone
    MODIS
    understory

    Cite this

    Moore, C. E., Brown, T., Keenan, T. F., Duursma, R. A., Van Dijk, A. I. J. M., Beringer, J., ... Liddell, M. J. (2016). Reviews and syntheses: Australian vegetation phenology: New insights from satellite remote sensing and digital repeat photography. Biogeosciences, 13(17), 5085-5102. https://doi.org/10.5194/bg-13-5085-2016
    Moore, Caitlin E. ; Brown, Tim ; Keenan, Trevor F. ; Duursma, Remko A. ; Van Dijk, Albert I J M ; Beringer, Jason ; Culvenor, Darius ; Evans, Bradley ; Huete, Alfredo ; Hutley, Lindsay B. ; Maier, Stefan ; Restrepo-Coupe, Natalia ; Sonnentag, Oliver ; Specht, Alison ; Taylor, Jeffrey R. ; Van Gorsel, Eva ; Liddell, Michael J. / Reviews and syntheses : Australian vegetation phenology: New insights from satellite remote sensing and digital repeat photography. In: Biogeosciences. 2016 ; Vol. 13, No. 17. pp. 5085-5102.
    @article{c50632bcc51e45f797091c061b910154,
    title = "Reviews and syntheses: Australian vegetation phenology: New insights from satellite remote sensing and digital repeat photography",
    abstract = "Phenology is the study of periodic biological occurrences and can provide important insights into the influence of climatic variability and change on ecosystems. Understanding Australia's vegetation phenology is a challenge due to its diverse range of ecosystems, from savannas and tropical rainforests to temperate eucalypt woodlands, semiarid scrublands, and alpine grasslands. These ecosystems exhibit marked differences in seasonal patterns of canopy development and plant life-cycle events, much of which deviates from the predictable seasonal phenological pulse of temperate deciduous and boreal biomes. Many Australian ecosystems are subject to irregular events (i.e. drought, flooding, cyclones, and fire) that can alter ecosystem composition, structure, and functioning just as much as seasonal change. We show how satellite remote sensing and ground-based digital repeat photography (i.e. phenocams) can be used to improve understanding of phenology in Australian ecosystems. First, we examine temporal variation in phenology on the continental scale using the enhanced vegetation index (EVI), calculated from MODerate resolution Imaging Spectroradiometer (MODIS) data. Spatial gradients are revealed, ranging from regions with pronounced seasonality in canopy development (i.e. tropical savannas) to regions where seasonal variation is minimal (i.e. tropical rainforests) or high but irregular (i.e. arid ecosystems). Next, we use time series colour information extracted from phenocam imagery to illustrate a range of phenological signals in four contrasting Australian ecosystems. These include greening and senescing events in tropical savannas and temperate eucalypt understorey, as well as strong seasonal dynamics of individual trees in a seemingly static evergreen rainforest. We also demonstrate how phenology links with ecosystem gross primary productivity (from eddy covariance) and discuss why these processes are linked in some ecosystems but not others. We conclude that phenocams have the potential to greatly improve the current understanding of Australian ecosystems. To facilitate the sharing of this information, we have formed the Australian Phenocam Network (http://phenocam.org.au/).",
    author = "Moore, {Caitlin E.} and Tim Brown and Keenan, {Trevor F.} and Duursma, {Remko A.} and {Van Dijk}, {Albert I J M} and Jason Beringer and Darius Culvenor and Bradley Evans and Alfredo Huete and Hutley, {Lindsay B.} and Stefan Maier and Natalia Restrepo-Coupe and Oliver Sonnentag and Alison Specht and Taylor, {Jeffrey R.} and {Van Gorsel}, Eva and Liddell, {Michael J.}",
    year = "2016",
    month = "9",
    day = "13",
    doi = "10.5194/bg-13-5085-2016",
    language = "English",
    volume = "13",
    pages = "5085--5102",
    journal = "Biogeosciences",
    issn = "1726-4170",
    publisher = "Copernicus GmbH",
    number = "17",

    }

    Moore, CE, Brown, T, Keenan, TF, Duursma, RA, Van Dijk, AIJM, Beringer, J, Culvenor, D, Evans, B, Huete, A, Hutley, LB, Maier, S, Restrepo-Coupe, N, Sonnentag, O, Specht, A, Taylor, JR, Van Gorsel, E & Liddell, MJ 2016, 'Reviews and syntheses: Australian vegetation phenology: New insights from satellite remote sensing and digital repeat photography', Biogeosciences, vol. 13, no. 17, pp. 5085-5102. https://doi.org/10.5194/bg-13-5085-2016

    Reviews and syntheses : Australian vegetation phenology: New insights from satellite remote sensing and digital repeat photography. / Moore, Caitlin E.; Brown, Tim; Keenan, Trevor F.; Duursma, Remko A.; Van Dijk, Albert I J M; Beringer, Jason; Culvenor, Darius; Evans, Bradley; Huete, Alfredo; Hutley, Lindsay B.; Maier, Stefan; Restrepo-Coupe, Natalia; Sonnentag, Oliver; Specht, Alison; Taylor, Jeffrey R.; Van Gorsel, Eva; Liddell, Michael J.

    In: Biogeosciences, Vol. 13, No. 17, 13.09.2016, p. 5085-5102.

    Research output: Contribution to journalReview articleResearchpeer-review

    TY - JOUR

    T1 - Reviews and syntheses

    T2 - Australian vegetation phenology: New insights from satellite remote sensing and digital repeat photography

    AU - Moore, Caitlin E.

    AU - Brown, Tim

    AU - Keenan, Trevor F.

    AU - Duursma, Remko A.

    AU - Van Dijk, Albert I J M

    AU - Beringer, Jason

    AU - Culvenor, Darius

    AU - Evans, Bradley

    AU - Huete, Alfredo

    AU - Hutley, Lindsay B.

    AU - Maier, Stefan

    AU - Restrepo-Coupe, Natalia

    AU - Sonnentag, Oliver

    AU - Specht, Alison

    AU - Taylor, Jeffrey R.

    AU - Van Gorsel, Eva

    AU - Liddell, Michael J.

    PY - 2016/9/13

    Y1 - 2016/9/13

    N2 - Phenology is the study of periodic biological occurrences and can provide important insights into the influence of climatic variability and change on ecosystems. Understanding Australia's vegetation phenology is a challenge due to its diverse range of ecosystems, from savannas and tropical rainforests to temperate eucalypt woodlands, semiarid scrublands, and alpine grasslands. These ecosystems exhibit marked differences in seasonal patterns of canopy development and plant life-cycle events, much of which deviates from the predictable seasonal phenological pulse of temperate deciduous and boreal biomes. Many Australian ecosystems are subject to irregular events (i.e. drought, flooding, cyclones, and fire) that can alter ecosystem composition, structure, and functioning just as much as seasonal change. We show how satellite remote sensing and ground-based digital repeat photography (i.e. phenocams) can be used to improve understanding of phenology in Australian ecosystems. First, we examine temporal variation in phenology on the continental scale using the enhanced vegetation index (EVI), calculated from MODerate resolution Imaging Spectroradiometer (MODIS) data. Spatial gradients are revealed, ranging from regions with pronounced seasonality in canopy development (i.e. tropical savannas) to regions where seasonal variation is minimal (i.e. tropical rainforests) or high but irregular (i.e. arid ecosystems). Next, we use time series colour information extracted from phenocam imagery to illustrate a range of phenological signals in four contrasting Australian ecosystems. These include greening and senescing events in tropical savannas and temperate eucalypt understorey, as well as strong seasonal dynamics of individual trees in a seemingly static evergreen rainforest. We also demonstrate how phenology links with ecosystem gross primary productivity (from eddy covariance) and discuss why these processes are linked in some ecosystems but not others. We conclude that phenocams have the potential to greatly improve the current understanding of Australian ecosystems. To facilitate the sharing of this information, we have formed the Australian Phenocam Network (http://phenocam.org.au/).

    AB - Phenology is the study of periodic biological occurrences and can provide important insights into the influence of climatic variability and change on ecosystems. Understanding Australia's vegetation phenology is a challenge due to its diverse range of ecosystems, from savannas and tropical rainforests to temperate eucalypt woodlands, semiarid scrublands, and alpine grasslands. These ecosystems exhibit marked differences in seasonal patterns of canopy development and plant life-cycle events, much of which deviates from the predictable seasonal phenological pulse of temperate deciduous and boreal biomes. Many Australian ecosystems are subject to irregular events (i.e. drought, flooding, cyclones, and fire) that can alter ecosystem composition, structure, and functioning just as much as seasonal change. We show how satellite remote sensing and ground-based digital repeat photography (i.e. phenocams) can be used to improve understanding of phenology in Australian ecosystems. First, we examine temporal variation in phenology on the continental scale using the enhanced vegetation index (EVI), calculated from MODerate resolution Imaging Spectroradiometer (MODIS) data. Spatial gradients are revealed, ranging from regions with pronounced seasonality in canopy development (i.e. tropical savannas) to regions where seasonal variation is minimal (i.e. tropical rainforests) or high but irregular (i.e. arid ecosystems). Next, we use time series colour information extracted from phenocam imagery to illustrate a range of phenological signals in four contrasting Australian ecosystems. These include greening and senescing events in tropical savannas and temperate eucalypt understorey, as well as strong seasonal dynamics of individual trees in a seemingly static evergreen rainforest. We also demonstrate how phenology links with ecosystem gross primary productivity (from eddy covariance) and discuss why these processes are linked in some ecosystems but not others. We conclude that phenocams have the potential to greatly improve the current understanding of Australian ecosystems. To facilitate the sharing of this information, we have formed the Australian Phenocam Network (http://phenocam.org.au/).

    UR - http://www.scopus.com/inward/record.url?scp=84987749296&partnerID=8YFLogxK

    U2 - 10.5194/bg-13-5085-2016

    DO - 10.5194/bg-13-5085-2016

    M3 - Review article

    VL - 13

    SP - 5085

    EP - 5102

    JO - Biogeosciences

    JF - Biogeosciences

    SN - 1726-4170

    IS - 17

    ER -