LS5_GM_NBART_11_-17_20050101.nc
dataset of product ls5_nbart_geomedian_annual
Indexed by dra547
,
created
Archived
for
1st January 2005
Fields 🔗
creation_time
2018-07-06 04:09:45 🔍
format
NetCDF 🔍
id
5a83c65e-a80d-46f9-98a7-8936e737ce6e 🔍
instrument
TM
label
• 🔍
lat
-15.587 to -14.604 🔍
lon
142.124 to 143.12 🔍
platform
LANDSAT_5
product_type
surface_reflectance_statistical_summary
time
2005-01-01 00:00:00 to 2005-01-01 00:00:00 🔍
Location 🔗
Metadata Document 🔗
id:
5a83c65e-a80d-46f9-98a7-8936e737ce6e
product_type:
surface_reflectance_statistical_summary
creation_dt:
2018-07-06T04:09:45.794148
platform:
code:
LANDSAT_5
instrument:
name:
TM
format:
name:
NetCDF
extent:
coord:
ll:
lat:
-15.587446207329815
lon:
142.19714645645976
lr:
lat:
-15.511611528718687
lon:
143.11967834216108
ul:
lat:
-14.679045660648692
lon:
142.12384123021172
ur:
lat:
-14.60352648709478
lon:
143.03980483406792
to_dt:
2005-01-01T00:00:00
from_dt:
2005-01-01T00:00:00
center_dt:
2005-01-01T00:00:00
grid_spatial:
projection:
valid_data:
type:
Polygon
coordinates:
[
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masks:
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flags:
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cloud_fmask:
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swir1
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location:
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computation:
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y:
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date_ranges:
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name:
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metadata:
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platform:
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instrument:
name:
TM
statistic:
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product_type:
surface_reflectance_statistical_summary
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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:
2.0
publisher_email:
earth.observation@ga.gov.au
keywords_vocabulary:
GCMD
coverage_content_type:
modelResult
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Linux r2663 3.10.0-862.3.3.el6.x86_64 #1 SMP Wed Jun 27 18:22:35 AEST 2018 x86_64
hostname:
r2663
software_versions:
python:
version:
3.6.5 | packaged by conda-forge | (default, Apr 6 2018, 13:39:56)
[GCC 4.8.2 20140120 (Red Hat 4.8.2-15)]
datacube:
version:
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repo_url:
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source_datasets:
statistics:
step:
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period:
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