{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:23:50.195410", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2021-Apr-05_to_2021-Apr-12_145.5_-18.5"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2021040001760}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "April 05 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 12 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 131035.70319594875}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Australia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Oceania"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": ["Coral Sea"]}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": -18.5}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 145.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "145.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 144.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 150.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -15.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[147.47, -20.53], [147.323, -20.177], [146.97, -20.03], [146.823, -19.677], [146.75, -19.646], [146.5, -19.75], [146.25, -19.646], [146.0, -19.75], [145.75, -19.646], [145.5, -19.75], [145.25, -19.646], [145.0, -19.75], [144.47, -19.53], [144.25, -19.0], [144.354, -18.75], [144.25, -18.5], [144.354, -18.25], [144.25, -18.0], [144.354, -17.75], [144.323, -17.677], [143.97, -17.53], [143.75, -17.0], [143.957, -16.5], [143.823, -16.177], [143.47, -16.03], [143.25, -15.5], [143.47, -14.97], [144.0, -14.75], [144.53, -14.97], [144.677, -15.323], [145.03, -15.47], [145.177, -15.823], [145.25, -15.854], [145.251, -15.854], [145.5, -15.75], [146.03, -15.97], [146.177, -16.323], [146.53, -16.47], [146.75, -17.0], [146.646, -17.25], [146.75, -17.5], [146.646, -17.75], [146.677, -17.823], [147.03, -17.97], [147.177, -18.323], [147.25, -18.354], [147.5, -18.25], [148.03, -18.47], [148.177, -18.823], [148.25, -18.854], [148.5, -18.75], [149.03, -18.97], [149.177, -19.323], [149.25, -19.354], [149.5, -19.25], [150.03, -19.47], [150.25, -20.0], [150.146, -20.25], [150.25, -20.5], [150.146, -20.75], [150.25, -21.0], [150.146, -21.25], [150.25, -21.5], [150.146, -21.75], [150.177, -21.823], [150.25, -21.854], [150.5, -21.75], [151.03, -21.97], [151.25, -22.5], [151.146, -22.75], [151.25, -23.0], [151.03, -23.53], [150.5, -23.75], [150.25, -23.646], [150.0, -23.75], [149.47, -23.53], [149.323, -23.177], [148.97, -23.03], [148.823, -22.677], [148.47, -22.53], [148.323, -22.177], [147.97, -22.03], [147.75, -21.5], [147.854, -21.25], [147.75, -21.0], [147.854, -20.75], [147.823, -20.677], [147.47, -20.53]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Australia", "E.Australia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-04-05T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[143.82322330470336, -16.17677669529664], [143.46966991411009, -16.03033008588991], [143.25, -15.5], [143.46966991411009, -14.969669914110089], [144.0, -14.75], [144.53033008588991, -14.969669914110089], [144.67677669529664, -15.323223304703363], [145.03033008588991, -15.469669914110089], [145.17677669529664, -15.823223304703363], [145.53033008588991, -15.969669914110089], [145.69822330470336, -16.375], [146.0, -16.25], [146.53033008588991, -16.46966991411009], [146.75, -17.0], [146.53033008588991, -17.53033008588991], [146.0, -17.75], [145.46966991411009, -17.53033008588991], [145.30177669529664, -17.125], [145.0, -17.25], [144.46966991411009, -17.03033008588991], [144.32322330470336, -16.67677669529664], [143.96966991411009, -16.53033008588991], [143.82322330470336, -16.17677669529664]]]}, "2021-04-06T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[143.82322330470336, -16.17677669529664], [143.46966991411009, -16.03033008588991], [143.25, -15.5], [143.46966991411009, -14.969669914110089], [144.0, -14.75], [144.53033008588991, -14.969669914110089], [144.67677669529664, -15.323223304703363], [145.03033008588991, -15.469669914110089], [145.17677669529664, -15.823223304703363], [145.53033008588991, -15.969669914110089], [145.69822330470336, -16.375], [146.0, -16.25], [146.53033008588991, -16.46966991411009], [146.75, -17.0], [146.64644660940672, -17.25], [146.75, -17.5], [146.64644660940672, -17.75], [146.75, -18.0], [146.53033008588991, -18.53033008588991], [146.17677669529664, -18.67677669529664], [146.03033008588991, -19.03033008588991], [145.5, -19.25], [144.96966991411009, -19.03033008588991], [144.75, -18.5], [144.85355339059328, -18.25], [144.82322330470336, -18.17677669529664], [144.46966991411009, -18.03033008588991], [144.32322330470336, -17.67677669529664], [143.96966991411009, -17.53033008588991], [143.75, -17.0], [143.95710678118655, -16.5], [143.82322330470336, -16.17677669529664]]]}, "2021-04-07T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[143.82322330470336, -16.17677669529664], [143.46966991411009, -16.03033008588991], [143.25, -15.5], [143.46966991411009, -14.969669914110089], [144.0, -14.75], [144.53033008588991, -14.969669914110089], [144.67677669529664, -15.323223304703363], [145.03033008588991, -15.469669914110089], [145.17677669529664, -15.823223304703363], [145.53033008588991, -15.969669914110089], [145.69822330470336, -16.375], [146.0, -16.25], [146.53033008588991, -16.46966991411009], [146.75, -17.0], [146.64644660940672, -17.25], [146.75, -17.5], [146.64644660940672, -17.75], [146.75, -18.0], [146.53033008588991, -18.53033008588991], [146.17677669529664, -18.67677669529664], [146.03033008588991, -19.03033008588991], [145.5, -19.25], [144.96966991411009, -19.03033008588991], [144.75, -18.5], [144.85355339059328, -18.25], [144.82322330470336, -18.17677669529664], [144.46966991411009, -18.03033008588991], [144.32322330470336, -17.67677669529664], [143.96966991411009, -17.53033008588991], [143.75, -17.0], [143.95710678118655, -16.5], [143.82322330470336, -16.17677669529664]]]}, "2021-04-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.96966991411009, -21.53033008588991], [147.75, -21.0], [147.96966991411009, -20.46966991411009], [148.5, -20.25], [149.03033008588991, -20.46966991411009], [149.17677669529664, -20.82322330470336], [149.53033008588991, -20.96966991411009], [149.75, -21.5], [149.57322330470336, -21.92677669529663], [150.0, -21.75], [150.25, -21.853553390593273], [150.5, -21.75], [151.03033008588991, -21.96966991411009], [151.25, -22.5], [151.03033008588991, -23.03033008588991], [150.5, -23.25], [150.25, -23.146446609406727], [150.0, -23.25], [149.46966991411009, -23.03033008588991], [149.25, -22.5], [149.42677669529664, -22.07322330470337], [149.0, -22.25], [148.46966991411009, -22.03033008588991], [148.32322330470336, -21.67677669529664], [147.96966991411009, -21.53033008588991]]], [[[143.96966991411009, -17.53033008588991], [143.75, -17.0], [143.96966991411009, -16.46966991411009], [144.5, -16.25], [145.03033008588991, -16.46966991411009], [145.17677669529664, -16.82322330470336], [145.25, -16.853553390593273], [145.5, -16.75], [145.75, -16.853553390593273], [146.0, -16.75], [146.53033008588991, -16.96966991411009], [146.75, -17.5], [146.64644660940672, -17.75], [146.75, -18.0], [146.53033008588991, -18.53033008588991], [146.17677669529664, -18.67677669529664], [146.03033008588991, -19.03033008588991], [145.5, -19.25], [144.96966991411009, -19.03033008588991], [144.75, -18.5], [144.85355339059328, -18.25], [144.82322330470336, -18.17677669529664], [144.46966991411009, -18.03033008588991], [144.32322330470336, -17.67677669529664], [143.96966991411009, -17.53033008588991]]]]}, "2021-04-09T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[144.35355339059328, -18.75], [144.25, -18.5], [144.35355339059328, -18.25], [144.25, -18.0], [144.46966991411009, -17.46966991411009], [144.82322330470336, -17.32322330470336], [144.95710678118655, -17.0], [144.75, -16.5], [144.96966991411009, -15.969669914110089], [145.5, -15.75], [146.03033008588991, -15.969669914110089], [146.17677669529664, -16.32322330470336], [146.53033008588991, -16.46966991411009], [146.75, -17.0], [146.64644660940672, -17.25], [146.75, -17.5], [146.64644660940672, -17.75], [146.67677669529664, -17.82322330470336], [147.03033008588991, -17.96966991411009], [147.17677669529664, -18.32322330470336], [147.25, -18.353553390593273], [147.5, -18.25], [148.03033008588991, -18.46966991411009], [148.17677669529664, -18.82322330470336], [148.25, -18.853553390593273], [148.5, -18.75], [149.03033008588991, -18.96966991411009], [149.17677669529664, -19.32322330470336], [149.25, -19.353553390593273], [149.5, -19.25], [150.03033008588991, -19.46966991411009], [150.25, -20.0], [150.14644660940672, -20.25], [150.25, -20.5], [150.14644660940672, -20.75], [150.25, -21.0], [150.14644660940672, -21.25], [150.25, -21.5], [150.14644660940672, -21.75], [150.17677669529664, -21.82322330470336], [150.25, -21.853553390593273], [150.5, -21.75], [151.03033008588991, -21.96966991411009], [151.25, -22.5], [151.14644660940672, -22.75], [151.25, -23.0], [151.03033008588991, -23.53033008588991], [150.5, -23.75], [150.25, -23.646446609406727], [150.0, -23.75], [149.46966991411009, -23.53033008588991], [149.32322330470336, -23.17677669529664], [148.96966991411009, -23.03033008588991], [148.82322330470336, -22.67677669529664], [148.46966991411009, -22.53033008588991], [148.32322330470336, -22.17677669529664], [147.96966991411009, -22.03033008588991], [147.75, -21.5], [147.85355339059328, -21.25], [147.75, -21.0], [147.85355339059328, -20.75], [147.82322330470336, -20.67677669529664], [147.46966991411009, -20.53033008588991], [147.32322330470336, -20.17677669529664], [146.96966991411009, -20.03033008588991], [146.82322330470336, -19.67677669529664], [146.75, -19.646446609406727], [146.5, -19.75], [146.25, -19.646446609406727], [146.0, -19.75], [145.75, -19.646446609406727], [145.5, -19.75], [145.25, -19.646446609406727], [145.0, -19.75], [144.46966991411009, -19.53033008588991], [144.25, -19.0], [144.35355339059328, -18.75]]]}, "2021-04-10T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[144.35355339059328, -18.75], [144.25, -18.5], [144.35355339059328, -18.25], [144.25, -18.0], [144.46966991411009, -17.46966991411009], [144.82322330470336, -17.32322330470336], [144.95710678118655, -17.0], [144.75, -16.5], [144.96966991411009, -15.969669914110089], [145.5, -15.75], [146.03033008588991, -15.969669914110089], [146.17677669529664, -16.32322330470336], [146.53033008588991, -16.46966991411009], [146.75, -17.0], [146.64644660940672, -17.25], [146.75, -17.5], [146.64644660940672, -17.75], [146.67677669529664, -17.82322330470336], [147.03033008588991, -17.96966991411009], [147.17677669529664, -18.32322330470336], [147.25, -18.353553390593273], [147.5, -18.25], [148.03033008588991, -18.46966991411009], [148.17677669529664, -18.82322330470336], [148.25, -18.853553390593273], [148.5, -18.75], [149.03033008588991, -18.96966991411009], [149.17677669529664, -19.32322330470336], [149.25, -19.353553390593273], [149.5, -19.25], [150.03033008588991, -19.46966991411009], [150.25, -20.0], [150.14644660940672, -20.25], [150.25, -20.5], [150.14644660940672, -20.75], [150.25, -21.0], [150.14644660940672, -21.25], [150.25, -21.5], [150.14644660940672, -21.75], [150.17677669529664, -21.82322330470336], [150.25, -21.853553390593273], [150.5, -21.75], [151.03033008588991, -21.96966991411009], [151.25, -22.5], [151.14644660940672, -22.75], [151.25, -23.0], [151.03033008588991, -23.53033008588991], [150.5, -23.75], [150.25, -23.646446609406727], [150.0, -23.75], [149.46966991411009, -23.53033008588991], [149.32322330470336, -23.17677669529664], [148.96966991411009, -23.03033008588991], [148.82322330470336, -22.67677669529664], [148.46966991411009, -22.53033008588991], [148.32322330470336, -22.17677669529664], [147.96966991411009, -22.03033008588991], [147.75, -21.5], [147.85355339059328, -21.25], [147.75, -21.0], [147.85355339059328, -20.75], [147.82322330470336, -20.67677669529664], [147.46966991411009, -20.53033008588991], [147.32322330470336, -20.17677669529664], [146.96966991411009, -20.03033008588991], [146.82322330470336, -19.67677669529664], [146.75, -19.646446609406727], [146.5, -19.75], [146.25, -19.646446609406727], [146.0, -19.75], [145.75, -19.646446609406727], [145.5, -19.75], [145.25, -19.646446609406727], [145.0, -19.75], [144.46966991411009, -19.53033008588991], [144.25, -19.0], [144.35355339059328, -18.75]]]}, "2021-04-11T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[144.35355339059328, -18.75], [144.25, -18.5], [144.35355339059328, -18.25], [144.25, -18.0], [144.46966991411009, -17.46966991411009], [144.82322330470336, -17.32322330470336], [144.95710678118655, -17.0], [144.75, -16.5], [144.96966991411009, -15.969669914110089], [145.5, -15.75], [146.03033008588991, -15.969669914110089], [146.17677669529664, -16.32322330470336], [146.53033008588991, -16.46966991411009], [146.75, -17.0], [146.64644660940672, -17.25], [146.75, -17.5], [146.64644660940672, -17.75], [146.67677669529664, -17.82322330470336], [147.03033008588991, -17.96966991411009], [147.17677669529664, -18.32322330470336], [147.25, -18.353553390593273], [147.5, -18.25], [148.03033008588991, -18.46966991411009], [148.17677669529664, -18.82322330470336], [148.25, -18.853553390593273], [148.5, -18.75], [149.03033008588991, -18.96966991411009], [149.17677669529664, -19.32322330470336], [149.25, -19.353553390593273], [149.5, -19.25], [150.03033008588991, -19.46966991411009], [150.25, -20.0], [150.14644660940672, -20.25], [150.25, -20.5], [150.14644660940672, -20.75], [150.25, -21.0], [150.14644660940672, -21.25], [150.25, -21.5], [150.14644660940672, -21.75], [150.17677669529664, -21.82322330470336], [150.25, -21.853553390593273], [150.5, -21.75], [151.03033008588991, -21.96966991411009], [151.25, -22.5], [151.14644660940672, -22.75], [151.25, -23.0], [151.03033008588991, -23.53033008588991], [150.5, -23.75], [150.25, -23.646446609406727], [150.0, -23.75], [149.46966991411009, -23.53033008588991], [149.32322330470336, -23.17677669529664], [148.96966991411009, -23.03033008588991], [148.82322330470336, -22.67677669529664], [148.46966991411009, -22.53033008588991], [148.32322330470336, -22.17677669529664], [147.96966991411009, -22.03033008588991], [147.75, -21.5], [147.85355339059328, -21.25], [147.75, -21.0], [147.85355339059328, -20.75], [147.82322330470336, -20.67677669529664], [147.46966991411009, -20.53033008588991], [147.32322330470336, -20.17677669529664], [146.96966991411009, -20.03033008588991], [146.82322330470336, -19.67677669529664], [146.75, -19.646446609406727], [146.5, -19.75], [146.25, -19.646446609406727], [146.0, -19.75], [145.75, -19.646446609406727], [145.5, -19.75], [145.25, -19.646446609406727], [145.0, -19.75], [144.46966991411009, -19.53033008588991], [144.25, -19.0], [144.35355339059328, -18.75]]]}, "2021-04-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[144.75, -18.0], [144.96966991411009, -17.46966991411009], [145.5, -17.25], [146.03033008588991, -17.46966991411009], [146.25, -18.0], [146.14644660940672, -18.25], [146.25, -18.5], [146.03033008588991, -19.03033008588991], [145.5, -19.25], [144.96966991411009, -19.03033008588991], [144.75, -18.5], [144.85355339059328, -18.25], [144.75, -18.0]]], [[[144.96966991411009, -17.03033008588991], [144.75, -16.5], [144.96966991411009, -15.969669914110089], [145.5, -15.75], [146.03033008588991, -15.969669914110089], [146.25, -16.5], [146.03033008588991, -17.03033008588991], [145.5, -17.25], [144.96966991411009, -17.03033008588991]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.4627125992191736}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8905475441272217}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.462252397637485, 25.66794141239569, 25.889088874710467, 24.481165190600052, 25.357858823782408, 25.797251043018207, 25.622699372799786, 24.003184846393992]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.11587030095086, 28.53209165373721, 27.892607435637444, 26.81401896719848, 26.86365011662059, 27.081501485891067, 27.1360029817518, 25.501499255532963]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.2847224161202604, 1.7678644136238042, 2.0901440594152207, 1.587254095012895, 1.622747842711395, 2.147085581427379, 2.042435739650314, 1.6533541985799236]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.563318502670029, 2.4825371012877895, 2.7408649980428095, 1.9218444943707595, 2.45017174766582, 3.4627125992191736, 3.405396023585695, 1.9140492629787218]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5609574023544608, 1.8752581949397802, 2.1515668608173675, 1.5056964641802288, 1.6108635327868694, 2.0417080725180266, 1.8747959240009542, 1.4112261789768397]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9189126415326159, 2.359904067712539, 2.6919498364714385, 1.703647741684605, 2.2050587832358874, 2.9346660389481616, 2.7283951452606447, 1.4961470010385853]}}