{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:17:43.073654", "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": "2020-Jul-29_to_2020-Jul-31_176.0_-63.0"}, "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": 2020070003277}, "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": "July 29 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 31 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 160244.0315566422}, "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": ["Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": ["Pacific Ocean", "Southern Ocean"]}, "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": -63.0}, "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": 176.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "176.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 165.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 177.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -63.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -58.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[165.25, -61.5], [165.47, -60.97], [166.0, -60.75], [166.25, -60.854], [166.5, -60.75], [166.75, -60.854], [166.823, -60.823], [166.957, -60.5], [166.823, -60.177], [166.75, -60.146], [166.5, -60.25], [165.97, -60.03], [165.75, -59.5], [165.97, -58.97], [166.5, -58.75], [166.75, -58.854], [167.0, -58.75], [167.5, -58.957], [168.0, -58.75], [168.25, -58.854], [168.5, -58.75], [168.75, -58.854], [168.823, -58.823], [168.97, -58.47], [169.323, -58.323], [169.47, -57.97], [170.0, -57.75], [170.25, -57.854], [170.5, -57.75], [170.75, -57.854], [171.0, -57.75], [171.53, -57.97], [171.677, -58.323], [172.03, -58.47], [172.177, -58.823], [172.53, -58.97], [172.677, -59.323], [172.75, -59.354], [173.0, -59.25], [173.25, -59.354], [173.5, -59.25], [173.75, -59.354], [174.0, -59.25], [174.53, -59.47], [174.75, -60.0], [174.646, -60.25], [174.75, -60.5], [174.646, -60.75], [174.75, -61.0], [174.646, -61.25], [174.677, -61.323], [174.75, -61.354], [175.0, -61.25], [175.25, -61.354], [175.5, -61.25], [175.75, -61.354], [176.0, -61.25], [176.53, -61.47], [176.677, -61.823], [177.03, -61.97], [177.177, -62.323], [177.53, -62.47], [177.75, -63.0], [177.53, -63.53], [177.0, -63.75], [176.75, -63.646], [176.5, -63.75], [176.25, -63.646], [176.0, -63.75], [175.75, -63.646], [175.5, -63.75], [174.97, -63.53], [174.823, -63.177], [174.75, -63.146], [174.5, -63.25], [174.25, -63.146], [174.0, -63.25], [173.75, -63.146], [173.5, -63.25], [173.25, -63.146], [173.0, -63.25], [172.47, -63.03], [172.323, -62.677], [172.25, -62.646], [172.0, -62.75], [171.75, -62.646], [171.5, -62.75], [171.25, -62.646], [171.0, -62.75], [170.75, -62.646], [170.5, -62.75], [170.25, -62.646], [170.0, -62.75], [169.75, -62.646], [169.5, -62.75], [169.25, -62.646], [169.0, -62.75], [168.75, -62.646], [168.5, -62.75], [168.25, -62.646], [168.177, -62.677], [168.03, -63.03], [167.5, -63.25], [167.25, -63.146], [167.0, -63.25], [166.5, -63.043], [166.0, -63.25], [165.75, -63.146], [165.5, -63.25], [164.97, -63.03], [164.75, -62.5], [164.97, -61.97], [165.323, -61.823], [165.354, -61.75], [165.25, -61.5]], [[168.823, -60.823], [168.854, -60.75], [168.823, -60.677], [168.75, -60.646], [168.625, -60.698], [168.677, -60.823], [168.75, -60.854], [168.823, -60.823]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Southern-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-07-29T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[165.32322330470336, -61.82322330470336], [165.35355339059328, -61.75], [165.25, -61.5], [165.46966991411009, -60.96966991411009], [166.0, -60.75], [166.25, -60.85355339059328], [166.5, -60.75], [166.75, -60.85355339059328], [166.82322330470336, -60.82322330470336], [166.95710678118655, -60.5], [166.82322330470336, -60.17677669529664], [166.75, -60.14644660940672], [166.5, -60.25], [165.96966991411009, -60.03033008588991], [165.75, -59.5], [165.96966991411009, -58.96966991411009], [166.5, -58.75], [166.75, -58.85355339059328], [167.0, -58.75], [167.5, -58.957106781186546], [168.0, -58.75], [168.25, -58.85355339059328], [168.5, -58.75], [168.75, -58.85355339059328], [168.82322330470336, -58.82322330470336], [168.96966991411009, -58.46966991411009], [169.32322330470336, -58.32322330470336], [169.46966991411009, -57.96966991411009], [170.0, -57.75], [170.25, -57.85355339059328], [170.5, -57.75], [170.75, -57.85355339059328], [171.0, -57.75], [171.53033008588991, -57.96966991411009], [171.67677669529664, -58.32322330470336], [172.03033008588991, -58.46966991411009], [172.17677669529664, -58.82322330470336], [172.53033008588991, -58.96966991411009], [172.67677669529664, -59.32322330470336], [172.75, -59.35355339059328], [173.0, -59.25], [173.25, -59.35355339059328], [173.5, -59.25], [173.75, -59.35355339059328], [174.0, -59.25], [174.53033008588991, -59.46966991411009], [174.75, -60.0], [174.64644660940672, -60.25], [174.75, -60.5], [174.64644660940672, -60.75], [174.75, -61.0], [174.64644660940672, -61.25], [174.67677669529664, -61.32322330470336], [174.75, -61.35355339059328], [175.0, -61.25], [175.25, -61.35355339059328], [175.5, -61.25], [175.75, -61.35355339059328], [176.0, -61.25], [176.53033008588991, -61.46966991411009], [176.67677669529664, -61.82322330470336], [177.03033008588991, -61.96966991411009], [177.17677669529664, -62.32322330470336], [177.53033008588991, -62.46966991411009], [177.75, -63.0], [177.53033008588991, -63.53033008588991], [177.0, -63.75], [176.75, -63.64644660940672], [176.5, -63.75], [176.25, -63.64644660940672], [176.0, -63.75], [175.75, -63.64644660940672], [175.5, -63.75], [174.96966991411009, -63.53033008588991], [174.82322330470336, -63.17677669529664], [174.75, -63.14644660940672], [174.5, -63.25], [174.25, -63.14644660940672], [174.0, -63.25], [173.75, -63.14644660940672], [173.5, -63.25], [173.25, -63.14644660940672], [173.0, -63.25], [172.46966991411009, -63.03033008588991], [172.32322330470336, -62.67677669529664], [172.25, -62.64644660940672], [172.0, -62.75], [171.75, -62.64644660940672], [171.5, -62.75], [171.25, -62.64644660940672], [171.0, -62.75], [170.75, -62.64644660940672], [170.5, -62.75], [170.25, -62.64644660940672], [170.0, -62.75], [169.75, -62.64644660940672], [169.5, -62.75], [169.25, -62.64644660940672], [169.0, -62.75], [168.75, -62.64644660940672], [168.5, -62.75], [168.25, -62.64644660940672], [168.17677669529664, -62.67677669529664], [168.03033008588991, -63.03033008588991], [167.5, -63.25], [167.25, -63.14644660940672], [167.0, -63.25], [166.5, -63.042893218813454], [166.0, -63.25], [165.75, -63.14644660940672], [165.5, -63.25], [164.96966991411009, -63.03033008588991], [164.75, -62.5], [164.96966991411009, -61.96966991411009], [165.32322330470336, -61.82322330470336]], [[168.67677669529664, -60.82322330470336], [168.75, -60.85355339059328], [168.82322330470336, -60.82322330470336], [168.85355339059328, -60.75], [168.82322330470336, -60.67677669529664], [168.75, -60.64644660940672], [168.625, -60.69822330470336], [168.67677669529664, -60.82322330470336]]]}, "2020-07-30T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[165.32322330470336, -61.82322330470336], [165.35355339059328, -61.75], [165.25, -61.5], [165.46966991411009, -60.96966991411009], [166.0, -60.75], [166.25, -60.85355339059328], [166.5, -60.75], [166.75, -60.85355339059328], [166.82322330470336, -60.82322330470336], [166.95710678118655, -60.5], [166.82322330470336, -60.17677669529664], [166.75, -60.14644660940672], [166.5, -60.25], [165.96966991411009, -60.03033008588991], [165.75, -59.5], [165.96966991411009, -58.96966991411009], [166.5, -58.75], [166.75, -58.85355339059328], [167.0, -58.75], [167.5, -58.957106781186546], [168.0, -58.75], [168.25, -58.85355339059328], [168.5, -58.75], [168.75, -58.85355339059328], [168.82322330470336, -58.82322330470336], [168.96966991411009, -58.46966991411009], [169.32322330470336, -58.32322330470336], [169.46966991411009, -57.96966991411009], [170.0, -57.75], [170.25, -57.85355339059328], [170.5, -57.75], [170.75, -57.85355339059328], [171.0, -57.75], [171.53033008588991, -57.96966991411009], [171.67677669529664, -58.32322330470336], [172.03033008588991, -58.46966991411009], [172.17677669529664, -58.82322330470336], [172.53033008588991, -58.96966991411009], [172.67677669529664, -59.32322330470336], [172.75, -59.35355339059328], [173.0, -59.25], [173.25, -59.35355339059328], [173.5, -59.25], [173.75, -59.35355339059328], [174.0, -59.25], [174.53033008588991, -59.46966991411009], [174.75, -60.0], [174.64644660940672, -60.25], [174.75, -60.5], [174.64644660940672, -60.75], [174.75, -61.0], [174.64644660940672, -61.25], [174.67677669529664, -61.32322330470336], [174.75, -61.35355339059328], [175.0, -61.25], [175.25, -61.35355339059328], [175.5, -61.25], [175.75, -61.35355339059328], [176.0, -61.25], [176.53033008588991, -61.46966991411009], [176.67677669529664, -61.82322330470336], [177.03033008588991, -61.96966991411009], [177.17677669529664, -62.32322330470336], [177.53033008588991, -62.46966991411009], [177.75, -63.0], [177.53033008588991, -63.53033008588991], [177.0, -63.75], [176.75, -63.64644660940672], [176.5, -63.75], [176.25, -63.64644660940672], [176.0, -63.75], [175.75, -63.64644660940672], [175.5, -63.75], [174.96966991411009, -63.53033008588991], [174.82322330470336, -63.17677669529664], [174.75, -63.14644660940672], [174.5, -63.25], [174.25, -63.14644660940672], [174.0, -63.25], [173.75, -63.14644660940672], [173.5, -63.25], [173.25, -63.14644660940672], [173.0, -63.25], [172.46966991411009, -63.03033008588991], [172.32322330470336, -62.67677669529664], [172.25, -62.64644660940672], [172.0, -62.75], [171.75, -62.64644660940672], [171.5, -62.75], [171.25, -62.64644660940672], [171.0, -62.75], [170.75, -62.64644660940672], [170.5, -62.75], [170.25, -62.64644660940672], [170.0, -62.75], [169.75, -62.64644660940672], [169.5, -62.75], [169.25, -62.64644660940672], [169.0, -62.75], [168.75, -62.64644660940672], [168.5, -62.75], [168.25, -62.64644660940672], [168.17677669529664, -62.67677669529664], [168.03033008588991, -63.03033008588991], [167.5, -63.25], [167.25, -63.14644660940672], [167.0, -63.25], [166.5, -63.042893218813454], [166.0, -63.25], [165.75, -63.14644660940672], [165.5, -63.25], [164.96966991411009, -63.03033008588991], [164.75, -62.5], [164.96966991411009, -61.96966991411009], [165.32322330470336, -61.82322330470336]], [[168.67677669529664, -60.82322330470336], [168.75, -60.85355339059328], [168.82322330470336, -60.82322330470336], [168.85355339059328, -60.75], [168.82322330470336, -60.67677669529664], [168.75, -60.64644660940672], [168.625, -60.69822330470336], [168.67677669529664, -60.82322330470336]]]}, "2020-07-31T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[165.32322330470336, -61.82322330470336], [165.35355339059328, -61.75], [165.25, -61.5], [165.46966991411009, -60.96966991411009], [166.0, -60.75], [166.25, -60.85355339059328], [166.5, -60.75], [166.75, -60.85355339059328], [166.82322330470336, -60.82322330470336], [166.95710678118655, -60.5], [166.82322330470336, -60.17677669529664], [166.75, -60.14644660940672], [166.5, -60.25], [165.96966991411009, -60.03033008588991], [165.75, -59.5], [165.96966991411009, -58.96966991411009], [166.5, -58.75], [166.75, -58.85355339059328], [167.0, -58.75], [167.5, -58.957106781186546], [168.0, -58.75], [168.25, -58.85355339059328], [168.5, -58.75], [168.75, -58.85355339059328], [168.82322330470336, -58.82322330470336], [168.96966991411009, -58.46966991411009], [169.32322330470336, -58.32322330470336], [169.46966991411009, -57.96966991411009], [170.0, -57.75], [170.25, -57.85355339059328], [170.5, -57.75], [170.75, -57.85355339059328], [171.0, -57.75], [171.53033008588991, -57.96966991411009], [171.67677669529664, -58.32322330470336], [172.03033008588991, -58.46966991411009], [172.17677669529664, -58.82322330470336], [172.53033008588991, -58.96966991411009], [172.67677669529664, -59.32322330470336], [172.75, -59.35355339059328], [173.0, -59.25], [173.25, -59.35355339059328], [173.5, -59.25], [173.75, -59.35355339059328], [174.0, -59.25], [174.53033008588991, -59.46966991411009], [174.75, -60.0], [174.64644660940672, -60.25], [174.75, -60.5], [174.64644660940672, -60.75], [174.75, -61.0], [174.64644660940672, -61.25], [174.67677669529664, -61.32322330470336], [174.75, -61.35355339059328], [175.0, -61.25], [175.25, -61.35355339059328], [175.5, -61.25], [175.75, -61.35355339059328], [176.0, -61.25], [176.53033008588991, -61.46966991411009], [176.67677669529664, -61.82322330470336], [177.03033008588991, -61.96966991411009], [177.17677669529664, -62.32322330470336], [177.53033008588991, -62.46966991411009], [177.75, -63.0], [177.53033008588991, -63.53033008588991], [177.0, -63.75], [176.75, -63.64644660940672], [176.5, -63.75], [176.25, -63.64644660940672], [176.0, -63.75], [175.75, -63.64644660940672], [175.5, -63.75], [174.96966991411009, -63.53033008588991], [174.82322330470336, -63.17677669529664], [174.75, -63.14644660940672], [174.5, -63.25], [174.25, -63.14644660940672], [174.0, -63.25], [173.75, -63.14644660940672], [173.5, -63.25], [173.25, -63.14644660940672], [173.0, -63.25], [172.46966991411009, -63.03033008588991], [172.32322330470336, -62.67677669529664], [172.25, -62.64644660940672], [172.0, -62.75], [171.75, -62.64644660940672], [171.5, -62.75], [171.25, -62.64644660940672], [171.0, -62.75], [170.75, -62.64644660940672], [170.5, -62.75], [170.25, -62.64644660940672], [170.0, -62.75], [169.75, -62.64644660940672], [169.5, -62.75], [169.25, -62.64644660940672], [169.0, -62.75], [168.75, -62.64644660940672], [168.5, -62.75], [168.25, -62.64644660940672], [168.17677669529664, -62.67677669529664], [168.03033008588991, -63.03033008588991], [167.5, -63.25], [167.25, -63.14644660940672], [167.0, -63.25], [166.5, -63.042893218813454], [166.0, -63.25], [165.75, -63.14644660940672], [165.5, -63.25], [164.96966991411009, -63.03033008588991], [164.75, -62.5], [164.96966991411009, -61.96966991411009], [165.32322330470336, -61.82322330470336]], [[168.67677669529664, -60.82322330470336], [168.75, -60.85355339059328], [168.82322330470336, -60.82322330470336], [168.85355339059328, -60.75], [168.82322330470336, -60.67677669529664], [168.75, -60.64644660940672], [168.625, -60.69822330470336], [168.67677669529664, -60.82322330470336]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.218647835134902}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.301177314672686}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [3.1526895664410404, 3.3480266900252786, 3.425642318052496]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.037247059409708, 6.181586348016026, 5.757858898666598]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.2415850939126685, 4.362978639565485, 4.298968210539912]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.926351268370411, 6.218647835134902, 6.036248879864445]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1142539614691338, 1.1718220218145872, 1.1987683321376434]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2641468462327656, 1.364964204845614, 1.3482903348397202]}}