{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:43.131447", "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": "2013-Feb-20_to_2013-Feb-24_166.0_-81.0"}, "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": 2013020001996}, "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": "February 20 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 24 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 54211.75015819268}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.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": ["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": -81.0}, "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": 166.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "166.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 160.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 171.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -82.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -77.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[169.25, -82.5], [169.47, -81.97], [170.0, -81.75], [170.25, -81.85], [170.5, -81.75], [170.75, -81.85], [171.0, -81.75], [171.53, -81.97], [171.75, -82.5], [171.53, -83.03], [171.0, -83.25], [170.75, -83.15], [170.5, -83.25], [170.25, -83.15], [170.0, -83.25], [169.47, -83.03], [169.25, -82.5]]], [[[165.25, -81.0], [165.47, -80.47], [166.0, -80.25], [166.25, -80.35], [166.5, -80.25], [167.03, -80.47], [167.25, -81.0], [167.03, -81.53], [166.5, -81.75], [166.25, -81.65], [166.0, -81.75], [165.47, -81.53], [165.25, -81.0]]]]}, "2013-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[159.85, -80.75], [159.75, -80.5], [159.85, -80.25], [159.75, -80.0], [159.97, -79.47], [160.5, -79.25], [160.75, -79.35], [160.82, -79.32], [160.97, -78.97], [161.5, -78.75], [161.75, -78.85], [162.0, -78.75], [162.25, -78.85], [162.32, -78.82], [162.47, -78.47], [163.0, -78.25], [163.25, -78.35], [163.5, -78.25], [163.75, -78.35], [164.0, -78.25], [164.25, -78.35], [164.5, -78.25], [164.75, -78.35], [165.0, -78.25], [165.25, -78.35], [165.5, -78.25], [165.75, -78.35], [166.0, -78.25], [166.25, -78.35], [166.5, -78.25], [166.75, -78.35], [166.88, -78.3], [166.75, -78.0], [166.97, -77.47], [167.5, -77.25], [167.75, -77.35], [168.0, -77.25], [168.25, -77.35], [168.5, -77.25], [168.75, -77.35], [169.0, -77.25], [169.53, -77.47], [169.75, -78.0], [169.53, -78.53], [169.0, -78.75], [168.75, -78.65], [168.68, -78.68], [168.65, -78.75], [168.75, -79.0], [168.53, -79.53], [168.18, -79.68], [168.03, -80.03], [167.5, -80.25], [167.25, -80.15], [167.0, -80.25], [166.75, -80.15], [166.63, -80.2], [166.68, -80.32], [167.03, -80.47], [167.18, -80.82], [167.25, -80.85], [167.5, -80.75], [168.03, -80.97], [168.18, -81.32], [168.25, -81.35], [168.5, -81.25], [168.75, -81.35], [169.0, -81.25], [169.53, -81.47], [169.68, -81.82], [169.75, -81.85], [170.0, -81.75], [170.25, -81.85], [170.5, -81.75], [170.75, -81.85], [171.0, -81.75], [171.53, -81.97], [171.75, -82.5], [171.53, -83.03], [171.0, -83.25], [170.75, -83.15], [170.5, -83.25], [170.25, -83.15], [170.0, -83.25], [169.75, -83.15], [169.5, -83.25], [169.25, -83.15], [169.0, -83.25], [168.75, -83.15], [168.5, -83.25], [168.25, -83.15], [168.0, -83.25], [167.75, -83.15], [167.5, -83.25], [167.25, -83.15], [167.0, -83.25], [166.75, -83.15], [166.5, -83.25], [166.25, -83.15], [166.0, -83.25], [165.75, -83.15], [165.5, -83.25], [165.25, -83.15], [165.0, -83.25], [164.75, -83.15], [164.5, -83.25], [164.25, -83.15], [164.0, -83.25], [163.75, -83.15], [163.5, -83.25], [162.97, -83.03], [162.82, -82.68], [162.47, -82.53], [162.32, -82.18], [162.25, -82.15], [162.0, -82.25], [161.75, -82.15], [161.5, -82.25], [161.25, -82.15], [161.0, -82.25], [160.75, -82.15], [160.5, -82.25], [159.97, -82.03], [159.75, -81.5], [159.85, -81.25], [159.75, -81.0], [159.85, -80.75]]]]}, "2013-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[159.85, -80.75], [159.75, -80.5], [159.85, -80.25], [159.75, -80.0], [159.97, -79.47], [160.5, -79.25], [160.75, -79.35], [160.82, -79.32], [160.97, -78.97], [161.5, -78.75], [161.75, -78.85], [162.0, -78.75], [162.25, -78.85], [162.32, -78.82], [162.47, -78.47], [163.0, -78.25], [163.25, -78.35], [163.5, -78.25], [163.75, -78.35], [164.0, -78.25], [164.25, -78.35], [164.5, -78.25], [164.75, -78.35], [165.0, -78.25], [165.25, -78.35], [165.5, -78.25], [165.75, -78.35], [166.0, -78.25], [166.25, -78.35], [166.5, -78.25], [166.75, -78.35], [166.88, -78.3], [166.75, -78.0], [166.97, -77.47], [167.5, -77.25], [167.75, -77.35], [168.0, -77.25], [168.25, -77.35], [168.5, -77.25], [168.75, -77.35], [169.0, -77.25], [169.53, -77.47], [169.75, -78.0], [169.53, -78.53], [169.0, -78.75], [168.75, -78.65], [168.68, -78.68], [168.65, -78.75], [168.75, -79.0], [168.53, -79.53], [168.18, -79.68], [168.03, -80.03], [167.5, -80.25], [167.25, -80.15], [167.0, -80.25], [166.75, -80.15], [166.63, -80.2], [166.68, -80.32], [167.03, -80.47], [167.18, -80.82], [167.25, -80.85], [167.5, -80.75], [168.03, -80.97], [168.18, -81.32], [168.25, -81.35], [168.5, -81.25], [168.75, -81.35], [169.0, -81.25], [169.53, -81.47], [169.68, -81.82], [169.75, -81.85], [170.0, -81.75], [170.25, -81.85], [170.5, -81.75], [170.75, -81.85], [171.0, -81.75], [171.53, -81.97], [171.75, -82.5], [171.53, -83.03], [171.0, -83.25], [170.75, -83.15], [170.5, -83.25], [170.25, -83.15], [170.0, -83.25], [169.75, -83.15], [169.5, -83.25], [169.25, -83.15], [169.0, -83.25], [168.75, -83.15], [168.5, -83.25], [168.25, -83.15], [168.0, -83.25], [167.75, -83.15], [167.5, -83.25], [167.25, -83.15], [167.0, -83.25], [166.75, -83.15], [166.5, -83.25], [166.25, -83.15], [166.0, -83.25], [165.75, -83.15], [165.5, -83.25], [165.25, -83.15], [165.0, -83.25], [164.75, -83.15], [164.5, -83.25], [164.25, -83.15], [164.0, -83.25], [163.75, -83.15], [163.5, -83.25], [162.97, -83.03], [162.82, -82.68], [162.47, -82.53], [162.32, -82.18], [162.25, -82.15], [162.0, -82.25], [161.75, -82.15], [161.5, -82.25], [161.25, -82.15], [161.0, -82.25], [160.75, -82.15], [160.5, -82.25], [159.97, -82.03], [159.75, -81.5], [159.85, -81.25], [159.75, -81.0], [159.85, -80.75]]]]}, "2013-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[159.85, -80.75], [159.75, -80.5], [159.85, -80.25], [159.75, -80.0], [159.97, -79.47], [160.5, -79.25], [160.75, -79.35], [160.82, -79.32], [160.97, -78.97], [161.5, -78.75], [161.75, -78.85], [162.0, -78.75], [162.25, -78.85], [162.32, -78.82], [162.47, -78.47], [163.0, -78.25], [163.25, -78.35], [163.5, -78.25], [163.75, -78.35], [164.0, -78.25], [164.25, -78.35], [164.5, -78.25], [164.75, -78.35], [165.0, -78.25], [165.25, -78.35], [165.5, -78.25], [165.75, -78.35], [166.0, -78.25], [166.25, -78.35], [166.5, -78.25], [166.75, -78.35], [166.88, -78.3], [166.75, -78.0], [166.97, -77.47], [167.5, -77.25], [167.75, -77.35], [168.0, -77.25], [168.25, -77.35], [168.5, -77.25], [168.75, -77.35], [169.0, -77.25], [169.53, -77.47], [169.75, -78.0], [169.53, -78.53], [169.0, -78.75], [168.75, -78.65], [168.68, -78.68], [168.65, -78.75], [168.75, -79.0], [168.53, -79.53], [168.18, -79.68], [168.03, -80.03], [167.5, -80.25], [167.25, -80.15], [167.0, -80.25], [166.75, -80.15], [166.63, -80.2], [166.68, -80.32], [167.03, -80.47], [167.18, -80.82], [167.25, -80.85], [167.5, -80.75], [168.03, -80.97], [168.18, -81.32], [168.25, -81.35], [168.5, -81.25], [168.75, -81.35], [169.0, -81.25], [169.53, -81.47], [169.68, -81.82], [169.75, -81.85], [170.0, -81.75], [170.53, -81.97], [170.75, -82.5], [170.53, -83.03], [170.0, -83.25], [169.75, -83.15], [169.5, -83.25], [169.25, -83.15], [169.0, -83.25], [168.75, -83.15], [168.5, -83.25], [168.25, -83.15], [168.0, -83.25], [167.75, -83.15], [167.5, -83.25], [167.25, -83.15], [167.0, -83.25], [166.75, -83.15], [166.5, -83.25], [166.25, -83.15], [166.0, -83.25], [165.75, -83.15], [165.5, -83.25], [165.25, -83.15], [165.0, -83.25], [164.75, -83.15], [164.5, -83.25], [164.25, -83.15], [164.0, -83.25], [163.75, -83.15], [163.5, -83.25], [162.97, -83.03], [162.82, -82.68], [162.47, -82.53], [162.32, -82.18], [162.25, -82.15], [162.0, -82.25], [161.75, -82.15], [161.5, -82.25], [161.25, -82.15], [161.0, -82.25], [160.75, -82.15], [160.5, -82.25], [159.97, -82.03], [159.75, -81.5], [159.85, -81.25], [159.75, -81.0], [159.85, -80.75]]]]}, "2013-02-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[160.97, -81.03], [160.75, -80.5], [160.97, -79.97], [161.5, -79.75], [161.75, -79.85], [162.0, -79.75], [162.53, -79.97], [162.75, -80.5], [162.53, -81.03], [162.0, -81.25], [161.75, -81.15], [161.5, -81.25], [160.97, -81.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.51250761895173}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.613442669288753}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-9.33259628564673, -7.5755615812354336, -9.037484827987555, -9.43606648970706, -10.428830355233913]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-8.675934672944948, -5.355881933806302, -7.036598175576387, -8.458959714474986, -10.16896421689313]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.254072606269773, 9.45076766275137, 8.324749600369996, 8.115200807090499, 6.267367566803927]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.620439897131234, 11.51250761895173, 10.008837971963288, 9.663867634479345, 6.275995014239697]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4175208219566189, 1.7441744608923202, 1.5375470104821527, 1.5493974650035123, 1.2436662824716969]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4718680530951687, 1.8983064919158745, 1.7330539051537712, 1.7079768391481611, 1.2665183701459173]}}