<del>LS8_GM_NBART_4_-20_20200101.nc</del>

creation_dt 2021-02-09T07:51:14.787535 creation_time 2021-02-09 07:51:14 format NetCDF id d4349b0e-348f-4bb5-9626-b0b0984e32c7 instrument OLI label • lat -18.649 to -17.716 lon 135.77 to 136.746 platform LANDSAT_8 product_type surface_reflectance_statistical_summary time 2020-01-01 00:00:00 to 2020-01-01 00:00:00

Location 🔗

file:///g/data/fk4/datacube/002/stats/geomedian/annual/ls8_gm/4_-20/LS8_GM_NBART_4_-20_20200101.nc

Metadata Document 🔗

RAW As Stac

id: d4349b0e-348f-4bb5-9626-b0b0984e32c7

product_type: surface_reflectance_statistical_summary

creation_dt: 2021-02-09T07:51:14.787535

platform:

code: LANDSAT_8

instrument:

format:

extent:

coord:

ll:

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lon: 135.7976991204075

lr:

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to_dt: 2020-01-01T00:00:00

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image:

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lineage:

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repo_url: https://github.com/GeoscienceAustralia/datacube-stats.git

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product: ls8_pq_albers

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location: ./output

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step_size: 1y

start_date: 2020-01-01

stats_duration: 1y

input_region: null

filter_product:

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metadata:

format:

platform:

code: LANDSAT_8

instrument:

statistic: geomedian

product_type: surface_reflectance_statistical_summary

output_params:

zlib: True

fletcher32: True

statistic_args:

num_threads: 24

file_path_template: ls8_gm/{x}_{y}/LS8_GM_NBART_{x}_{y}_{epoch_start:%Y%m%d}.nc

]

global_attributes:

title: Surface Reflectance Geometric Median

source: geometric median v2017 of surface reflectance NBAR+T

license: CC BY Attribution 4.0 International License

summary: The surface reflectance geometric median (geomedian) is a pixel composite mosaic of a time series of earth observations. The value of a pixel in a geomedian image is the statistical median of all observations for that pixel from a period of time. For example the 2016 Landsat 8 geomedian image over an area will be the median of Landsat 8 pixels observed for that area in 2016. The geometric median products are available as annual datasets for years since 1987. Each annual composite is created from one calendar year of surface reflectance and for one sensor, i.e. Thematic Mapper (Landsat 5), Enhanced Thematic Mapper (Landsat 7) or Operational Land Imager (Landsat 8). The algorithm considers concurrent spectral measurements as a multi-dimensional set and outputs a multi-dimensional median that maintains the relationships among the measurements. This provides a median of the physical conditions measured by the earth observations used to create it, and provides a good representation of a typical pixel observation devoid of outliers. More information on the algorithm can be found in the article below: - Roberts, D., Mueller, N., & Mcintyre, A. (2017). High-Dimensional Pixel Composites From Earth Observation Time Series. IEEE Transactions on Geoscience and Remote Sensing, 55(11), 6254-6264. https://doi.org/10.1109/tgrs.2017.2723896

keywords: AU/GA,NASA/GSFC/SED/ESD/LANDSAT,REFLECTANCE,ETM+,TM,OLI,EARTH SCIENCE

platform: LANDSAT_5,LANDSAT_7,LANDSAT_8

instrument: TM,ETM+,OLI

references: - Roberts, D., Mueller, N., & Mcintyre, A. (2017). High-Dimensional Pixel Composites From Earth Observation Time Series. IEEE Transactions on Geoscience and Remote Sensing, 55(11), 6254-6264. https://doi.org/10.1109/tgrs.2017.2723896

description: Surface Reflectance Geometric Median 25 metre, 100km tile, Australian Albers Equal Area projection (EPSG:3577)

institution: Commonwealth of Australia (Geoscience Australia)

cdm_data_type: Grid

product_suite: Surface Reflectance Geometric Median 25m

publisher_url: http://www.ga.gov.au

acknowledgment: - Landsat data is provided by the United States Geological Survey (USGS) through direct reception of the data at Geoscience Australias satellite reception facility or download.

publisher_name: Section Leader, Operations Section, NEMO, Geoscience Australia

product_version: 2.0

publisher_email: earth.observation@ga.gov.au

keywords_vocabulary: GCMD

coverage_content_type: modelResult

machine:

uname: Linux gadi-cpu-clx-0151.gadi.nci.org.au 4.18.0-240.1.1.el8.nci.x86_64 #1 SMP Tue Dec 15 02:36:21 UTC 2020 x86_64

hostname: gadi-cpu-clx-0151.gadi.nci.org.au

software_versions:

python:

version: 3.6.10 | packaged by conda-forge | (default, Apr 24 2020, 16:44:11) [GCC 7.3.0]

datacube:

version: 1.8.4.dev52+g07bc51a5

repo_url: https://github.com/opendatacube/datacube-core.git

source_datasets:

statistics:

step: 1y

period: 1y