LS8_GM_NBART_-1_-15_20150101.nc
dataset of product ls8_nbart_geomedian_annual
Indexed by dra547
,
created
Archived
for
1st January 2015
Fields 🔗
creation_time
2018-03-12 15:27:28 🔍
format
NetCDF 🔍
id
5f7b6177-31f5-4568-ba30-229a2883452e 🔍
instrument
OLI
label
• 🔍
lat
-14.164 to -13.245 🔍
lon
131.084 to 132.0 🔍
platform
LANDSAT_8
product_type
surface_reflectance_statistical_summary
time
2015-01-01 00:00:00 to 2015-01-01 00:00:00 🔍
Location 🔗
Metadata Document 🔗
id:
5f7b6177-31f5-4568-ba30-229a2883452e
product_type:
surface_reflectance_statistical_summary
creation_dt:
2018-03-12T15:27:28.618093
platform:
code:
LANDSAT_8
instrument:
name:
OLI
format:
name:
NetCDF
extent:
coord:
ll:
lat:
-14.160624802984776
lon:
131.08434546720093
lr:
lat:
-14.163901380173124
lon:
131.99999999999997
ul:
lat:
-13.24481006827328
lon:
131.09086135894032
ur:
lat:
-13.248074220289004
lon:
131.99999999999997
to_dt:
2015-01-01T00:00:00
from_dt:
2015-01-01T00:00:00
center_dt:
2015-01-01T00:00:00
grid_spatial:
projection:
valid_data:
type:
Polygon
coordinates:
[
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red:
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lineage:
algorithm:
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flags:
cloud_acca:
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pixelquality
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solar_day
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red
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swir1
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y:
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resolution:
x:
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y:
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dimension_order:
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y
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]
location:
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computation:
chunking:
x:
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y:
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date_ranges:
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step_size:
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start_date:
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stats_duration:
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name:
ls8_nbart_geomedian_annual
metadata:
platform:
LANDSAT-8
statistic:
new_geomedian
product_type:
surface_reflectance_statistical_summary
output_params:
zlib:
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fletcher32:
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statistic_args:
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file_path_template:
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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
publisher_email:
earth.observation@ga.gov.au
keywords_vocabulary:
GCMD
coverage_content_type:
modelResult
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hostname:
r3585
software_versions:
python:
version:
3.6.3 | packaged by conda-forge | (default, Nov 4 2017, 10:10:56)
[GCC 4.8.2 20140120 (Red Hat 4.8.2-15)]
datacube:
version:
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repo_url:
https://github.com/opendatacube/datacube-core.git
source_datasets:
statistics:
step:
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period:
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