{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:10:15.703393", "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": "2018-Feb-13_to_2018-Feb-18_299.5_-51.5"}, "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": 2018020001777}, "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 13 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 18 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 130285.92867625019}, "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": ["Falkland Islands"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Atlantic-Ocean", "S.South-America", "Southern-Ocean"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "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": ["South Atlantic 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": -51.5}, "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": 299.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "299.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 297.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 309.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -55.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -51.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-02-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.5, -52.75], [-56.97, -52.97], [-56.75, -53.5], [-56.97, -54.03], [-57.5, -54.25], [-58.03, -54.03], [-58.25, -53.5], [-58.03, -52.97], [-57.5, -52.75]]]]}, "2018-02-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.25, -53.0], [-58.03, -52.47], [-57.5, -52.25], [-57.25, -52.35], [-57.0, -52.25], [-56.47, -52.47], [-56.32, -52.82], [-56.25, -52.85], [-56.0, -52.75], [-55.47, -52.97], [-55.32, -53.32], [-55.25, -53.35], [-55.0, -53.25], [-54.75, -53.35], [-54.5, -53.25], [-54.25, -53.35], [-54.0, -53.25], [-53.75, -53.35], [-53.5, -53.25], [-53.25, -53.35], [-53.0, -53.25], [-52.5, -53.46], [-52.0, -53.25], [-51.75, -53.35], [-51.5, -53.25], [-50.97, -53.47], [-50.82, -53.82], [-50.47, -53.97], [-50.32, -54.32], [-49.97, -54.47], [-49.75, -55.0], [-49.97, -55.53], [-50.5, -55.75], [-50.75, -55.65], [-50.82, -55.68], [-50.97, -56.03], [-51.5, -56.25], [-51.75, -56.15], [-52.0, -56.25], [-52.25, -56.15], [-52.5, -56.25], [-53.03, -56.03], [-53.25, -55.5], [-53.12, -55.2], [-53.25, -55.15], [-53.5, -55.25], [-53.75, -55.15], [-54.0, -55.25], [-54.25, -55.15], [-54.5, -55.25], [-54.75, -55.15], [-55.0, -55.25], [-55.25, -55.15], [-55.5, -55.25], [-55.75, -55.15], [-56.0, -55.25], [-56.25, -55.15], [-56.5, -55.25], [-56.75, -55.15], [-57.0, -55.25], [-57.53, -55.03], [-57.68, -54.68], [-58.03, -54.53], [-58.25, -54.0], [-58.15, -53.75], [-58.25, -53.5], [-58.15, -53.25], [-58.25, -53.0]]], [[[-61.03, -52.03], [-61.25, -51.5], [-61.03, -50.97], [-60.5, -50.75], [-59.97, -50.97], [-59.75, -51.5], [-59.97, -52.03], [-60.5, -52.25], [-61.03, -52.03]]]]}, "2018-02-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.53, -52.47], [-62.0, -52.25], [-61.75, -52.35], [-61.68, -52.32], [-61.65, -52.25], [-61.75, -52.0], [-61.53, -51.47], [-61.18, -51.32], [-61.03, -50.97], [-60.5, -50.75], [-59.97, -50.97], [-59.75, -51.5], [-59.87, -51.8], [-59.5, -51.96], [-59.0, -51.75], [-58.75, -51.85], [-58.5, -51.75], [-58.25, -51.85], [-58.0, -51.75], [-57.47, -51.97], [-57.32, -52.32], [-57.25, -52.35], [-57.0, -52.25], [-56.47, -52.47], [-56.32, -52.82], [-56.25, -52.85], [-56.0, -52.75], [-55.47, -52.97], [-55.32, -53.32], [-55.25, -53.35], [-55.0, -53.25], [-54.75, -53.35], [-54.5, -53.25], [-54.25, -53.35], [-54.0, -53.25], [-53.75, -53.35], [-53.5, -53.25], [-53.25, -53.35], [-53.0, -53.25], [-52.5, -53.46], [-52.0, -53.25], [-51.75, -53.35], [-51.5, -53.25], [-50.97, -53.47], [-50.82, -53.82], [-50.47, -53.97], [-50.32, -54.32], [-49.97, -54.47], [-49.75, -55.0], [-49.97, -55.53], [-50.5, -55.75], [-50.75, -55.65], [-50.82, -55.68], [-50.97, -56.03], [-51.5, -56.25], [-51.75, -56.15], [-52.0, -56.25], [-52.25, -56.15], [-52.5, -56.25], [-53.03, -56.03], [-53.25, -55.5], [-53.12, -55.2], [-53.25, -55.15], [-53.5, -55.25], [-53.75, -55.15], [-54.0, -55.25], [-54.25, -55.15], [-54.5, -55.25], [-54.75, -55.15], [-55.0, -55.25], [-55.25, -55.15], [-55.5, -55.25], [-55.75, -55.15], [-56.0, -55.25], [-56.25, -55.15], [-56.5, -55.25], [-56.75, -55.15], [-57.0, -55.25], [-57.53, -55.03], [-57.68, -54.68], [-58.03, -54.53], [-58.18, -54.18], [-58.25, -54.15], [-58.5, -54.25], [-58.75, -54.15], [-59.0, -54.25], [-59.25, -54.15], [-59.5, -54.25], [-59.75, -54.15], [-60.0, -54.25], [-60.25, -54.15], [-60.5, -54.25], [-60.75, -54.15], [-61.0, -54.25], [-61.25, -54.15], [-61.5, -54.25], [-61.75, -54.15], [-62.0, -54.25], [-62.53, -54.03], [-62.75, -53.5], [-62.65, -53.25], [-62.75, -53.0], [-62.53, -52.47]]]]}, "2018-02-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.53, -52.47], [-62.0, -52.25], [-61.75, -52.35], [-61.68, -52.32], [-61.65, -52.25], [-61.75, -52.0], [-61.53, -51.47], [-61.18, -51.32], [-61.03, -50.97], [-60.5, -50.75], [-59.97, -50.97], [-59.75, -51.5], [-59.87, -51.8], [-59.5, -51.96], [-59.0, -51.75], [-58.75, -51.85], [-58.5, -51.75], [-58.25, -51.85], [-58.0, -51.75], [-57.47, -51.97], [-57.32, -52.32], [-57.25, -52.35], [-57.18, -52.32], [-57.03, -51.97], [-56.68, -51.82], [-56.53, -51.47], [-56.0, -51.25], [-55.75, -51.35], [-55.68, -51.32], [-55.53, -50.97], [-55.0, -50.75], [-54.75, -50.85], [-54.5, -50.75], [-53.97, -50.97], [-53.75, -51.5], [-53.97, -52.03], [-54.32, -52.18], [-54.47, -52.53], [-55.0, -52.75], [-55.25, -52.65], [-55.32, -52.68], [-55.46, -53.0], [-55.32, -53.32], [-55.25, -53.35], [-55.0, -53.25], [-54.75, -53.35], [-54.5, -53.25], [-54.25, -53.35], [-54.0, -53.25], [-53.75, -53.35], [-53.5, -53.25], [-53.25, -53.35], [-53.0, -53.25], [-52.5, -53.46], [-52.0, -53.25], [-51.75, -53.35], [-51.5, -53.25], [-50.97, -53.47], [-50.82, -53.82], [-50.47, -53.97], [-50.32, -54.32], [-49.97, -54.47], [-49.75, -55.0], [-49.97, -55.53], [-50.5, -55.75], [-50.75, -55.65], [-50.82, -55.68], [-50.97, -56.03], [-51.5, -56.25], [-51.75, -56.15], [-52.0, -56.25], [-52.25, -56.15], [-52.5, -56.25], [-53.03, -56.03], [-53.25, -55.5], [-53.12, -55.2], [-53.25, -55.15], [-53.5, -55.25], [-53.75, -55.15], [-54.0, -55.25], [-54.25, -55.15], [-54.5, -55.25], [-54.75, -55.15], [-55.0, -55.25], [-55.25, -55.15], [-55.5, -55.25], [-55.75, -55.15], [-56.0, -55.25], [-56.25, -55.15], [-56.5, -55.25], [-56.75, -55.15], [-57.0, -55.25], [-57.53, -55.03], [-57.68, -54.68], [-58.03, -54.53], [-58.18, -54.18], [-58.25, -54.15], [-58.5, -54.25], [-58.75, -54.15], [-59.0, -54.25], [-59.25, -54.15], [-59.5, -54.25], [-59.75, -54.15], [-60.0, -54.25], [-60.25, -54.15], [-60.5, -54.25], [-60.75, -54.15], [-61.0, -54.25], [-61.25, -54.15], [-61.5, -54.25], [-61.75, -54.15], [-62.0, -54.25], [-62.53, -54.03], [-62.75, -53.5], [-62.65, -53.25], [-62.75, -53.0], [-62.53, -52.47]]]]}, "2018-02-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.53, -52.47], [-62.0, -52.25], [-61.75, -52.35], [-61.68, -52.32], [-61.65, -52.25], [-61.75, -52.0], [-61.53, -51.47], [-61.18, -51.32], [-61.03, -50.97], [-60.5, -50.75], [-59.97, -50.97], [-59.75, -51.5], [-59.87, -51.8], [-59.5, -51.96], [-59.0, -51.75], [-58.75, -51.85], [-58.5, -51.75], [-58.25, -51.85], [-58.0, -51.75], [-57.47, -51.97], [-57.25, -52.5], [-57.03, -51.97], [-56.68, -51.82], [-56.53, -51.47], [-56.0, -51.25], [-55.75, -51.35], [-55.68, -51.32], [-55.53, -50.97], [-55.0, -50.75], [-54.75, -50.85], [-54.5, -50.75], [-53.97, -50.97], [-53.75, -51.5], [-53.97, -52.03], [-54.32, -52.18], [-54.47, -52.53], [-55.0, -52.75], [-55.25, -52.65], [-55.32, -52.68], [-55.47, -53.03], [-55.87, -53.2], [-55.75, -53.5], [-55.97, -54.03], [-56.32, -54.18], [-56.47, -54.53], [-57.0, -54.75], [-57.53, -54.53], [-57.7, -54.12], [-58.0, -54.25], [-58.25, -54.15], [-58.5, -54.25], [-58.75, -54.15], [-59.0, -54.25], [-59.25, -54.15], [-59.5, -54.25], [-59.75, -54.15], [-60.0, -54.25], [-60.25, -54.15], [-60.5, -54.25], [-60.75, -54.15], [-61.0, -54.25], [-61.25, -54.15], [-61.5, -54.25], [-61.75, -54.15], [-62.0, -54.25], [-62.53, -54.03], [-62.75, -53.5], [-62.65, -53.25], [-62.75, -53.0], [-62.53, -52.47]], [[-57.35, -52.75], [-57.25, -53.0], [-57.35, -53.25], [-57.3, -53.38], [-57.18, -53.32], [-57.04, -53.0], [-57.25, -52.5], [-57.35, -52.75]]]]}, "2018-02-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-55.75, -51.35], [-55.68, -51.32], [-55.53, -50.97], [-55.0, -50.75], [-54.75, -50.85], [-54.5, -50.75], [-53.97, -50.97], [-53.75, -51.5], [-53.97, -52.03], [-54.32, -52.18], [-54.47, -52.53], [-55.0, -52.75], [-55.25, -52.65], [-55.32, -52.68], [-55.47, -53.03], [-56.0, -53.25], [-56.25, -53.15], [-56.5, -53.25], [-57.03, -53.03], [-57.25, -52.5], [-57.03, -51.97], [-56.68, -51.82], [-56.53, -51.47], [-56.0, -51.25], [-55.75, -51.35]]], [[[-59.97, -50.97], [-59.75, -51.5], [-59.97, -52.03], [-60.32, -52.18], [-60.47, -52.53], [-61.0, -52.75], [-61.53, -52.53], [-61.75, -52.0], [-61.53, -51.47], [-61.18, -51.32], [-61.03, -50.97], [-60.5, -50.75], [-59.97, -50.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.9640928869360437}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.7806047898216735}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.805339150015016, 8.810171435179484, 9.669545889450887, 9.7745089097873, 10.451358614329877, 10.915534618121683]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.805339150015016, 11.859317348194793, 11.888829294931725, 13.050920488790155, 11.86271488608088, 12.411850274235974]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.536733617102243, 1.603595270176709, 1.7321969939636768, 1.9062427963000201, 1.717485985799564, 2.1732937958879006]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.536733617102243, 1.9313020711477975, 2.108929573285934, 2.9640928869360437, 2.0678415733590896, 2.4421176014574826]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2053714179117276, 1.2887747888744425, 1.3677086276911048, 1.4698279236250955, 1.2697798253201296, 1.6057272592110796]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2053714179117276, 1.5826720718504463, 1.6775772328051253, 2.1295201846540723, 1.3725257140732103, 1.7781713362897895]}}