September 10, 2019 Dataset Open Access

Ioannis Manakos; Georgios Kordelas; Kalliroi Marini; Georgios Chantziaras

MARC21 XML Export

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    <subfield code="x">Lange, M.; Doktor, D. Phenex: Auxiliary Functions for Phenological Data Analysis, R Package Version 1.4-5. Available online: https://CRAN.R-project.org/package=phenex (accessed on 10 September 2019).</subfield>
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    <subfield code="a">Phenology metrics</subfield>
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    <subfield code="a">Senescence day</subfield>
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    <subfield code="a">Green up day</subfield>
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    <subfield code="a">Day of Maximum NDVI</subfield>
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    <subfield code="a">Total number of NDVI peaks</subfield>
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    <subfield code="u">Centre for Research and Technology - Hellas</subfield>
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    <subfield code="u">https://zenodo.org/record/3403798/files/Phenology_Metrics_Per_Pixel_and_ISODATA_classification_for_Donana_Marshes.zip</subfield>
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    <subfield code="u">Centre for Research and Technology - Hellas</subfield>
    <subfield code="a">Ioannis Manakos</subfield>
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    <subfield code="a">Phenology metric layers and their classification layers for the NDVI approximated phenological cycle of Donana from 01/12/2015 to 31/11/2016.</subfield>
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    <subfield code="a">ECOPOTENTIAL: IMPROVING FUTURE ECOSYSTEM BENEFITS THROUGH EARTH OBSERVATIONS</subfield>
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    <subfield code="a">&lt;p&gt;Analysis of changes in the phenological cycle of different plant species provide important information that may be used to assess the impact of seasonal and inter-annual climate variations on terrestrial vegetation. Phenex software has been used for estimating phenology related layers for Donana marshes relying on NDVI time series covering one year period from 01/12/2015 to 31/11/2016.&lt;/p&gt;

&lt;p&gt;&amp;ldquo;Phenology_metrics_layer_Dec2015_Nov2016.tif&amp;rdquo; includes the following layers: (i) green up day, (ii) senescence day, (iii) day of max NDVI value, and (iv) total number of NDVI peaks. These layers are also provided separately with the names: &amp;ldquo;Greenup_day_Dec2015_Nov2016.tif&amp;rdquo;, &amp;ldquo;Senescence_day_Dec2015_Nov2016.tif&amp;rdquo;, &amp;ldquo;Max_day_Dec2015_Nov2016.tif&amp;rdquo;, &amp;ldquo;Number_of_peaks_Dec2015_Nov2016.tif&amp;rdquo;.&lt;/p&gt;

&lt;p&gt;Classification layers based on these layers have been also generated. In particular, &amp;quot;ISODATA_classification_all_input_layers_Dec2015_Nov2016.tif&amp;quot; layer contains the classes generated when providing all phenology related layers as input to the ISODATA algorithm, while &amp;quot;ISODATA_classification_three_input_layers_Dec2015_Nov2016.tif&amp;quot; layer contains contains the classes generated when providing three penology related layers (i.e. greenup day, day of max NDVI value, senescence day layers) as input to the ISODATA algorithm.&lt;/p&gt;

&lt;p&gt;The above files are accompanied by INSPIRE metadata XML files. Detailed information can be found in the &amp;ldquo;Readme.pdf&amp;rdquo; included in the zip containing the dataset.&lt;/p&gt;

&lt;p&gt;&amp;nbsp;&lt;/p&gt;</subfield>
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