{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:54:31.312091", "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": "2025-Jan-31_to_2025-Feb-05_18.5_-5.0"}, "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": 2025010002535}, "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": "January 31 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 05 2025"}, "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": 52114.92235587111}, "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": ["Angola", "Congo DRC"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": []}, "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": -5.0}, "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": 18.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "18.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 16.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 19.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -9.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -4.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-01-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.25, -6.5], [16.47, -5.97], [16.82, -5.82], [16.97, -5.47], [17.5, -5.25], [18.03, -5.47], [18.25, -6.0], [18.04, -6.5], [18.25, -7.0], [18.03, -7.53], [17.5, -7.75], [16.97, -7.53], [16.82, -7.18], [16.47, -7.03], [16.25, -6.5]]]]}, "2025-02-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.25, -6.5], [16.47, -5.97], [16.82, -5.82], [16.97, -5.47], [17.32, -5.32], [17.47, -4.97], [17.82, -4.82], [17.97, -4.47], [18.5, -4.25], [18.75, -4.35], [19.0, -4.25], [19.53, -4.47], [19.75, -5.0], [19.65, -5.25], [19.75, -5.5], [19.53, -6.03], [19.0, -6.25], [18.5, -6.04], [18.18, -6.18], [18.04, -6.5], [18.18, -6.82], [18.53, -6.97], [18.68, -7.32], [18.75, -7.35], [19.0, -7.25], [19.53, -7.47], [19.75, -8.0], [19.53, -8.53], [19.18, -8.68], [19.15, -8.75], [19.25, -9.0], [19.15, -9.25], [19.25, -9.5], [19.03, -10.03], [18.5, -10.25], [17.97, -10.03], [17.75, -9.5], [17.85, -9.25], [17.82, -9.18], [17.47, -9.03], [17.32, -8.68], [16.97, -8.53], [16.75, -8.0], [16.85, -7.75], [16.75, -7.5], [16.85, -7.25], [16.82, -7.18], [16.47, -7.03], [16.25, -6.5]]]]}, "2025-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.25, -6.5], [16.47, -5.97], [16.82, -5.82], [16.97, -5.47], [17.32, -5.32], [17.47, -4.97], [17.82, -4.82], [17.97, -4.47], [18.5, -4.25], [18.75, -4.35], [19.0, -4.25], [19.53, -4.47], [19.75, -5.0], [19.65, -5.25], [19.75, -5.5], [19.53, -6.03], [19.0, -6.25], [18.5, -6.04], [18.18, -6.18], [18.04, -6.5], [18.18, -6.82], [18.53, -6.97], [18.68, -7.32], [18.75, -7.35], [19.0, -7.25], [19.53, -7.47], [19.75, -8.0], [19.53, -8.53], [19.18, -8.68], [19.15, -8.75], [19.25, -9.0], [19.15, -9.25], [19.25, -9.5], [19.03, -10.03], [18.5, -10.25], [17.97, -10.03], [17.75, -9.5], [17.85, -9.25], [17.82, -9.18], [17.47, -9.03], [17.32, -8.68], [16.97, -8.53], [16.75, -8.0], [16.85, -7.75], [16.75, -7.5], [16.85, -7.25], [16.82, -7.18], [16.47, -7.03], [16.25, -6.5]]]]}, "2025-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.5, -6.75], [17.75, -6.85], [18.0, -6.75], [18.53, -6.97], [18.68, -7.32], [18.75, -7.35], [19.0, -7.25], [19.53, -7.47], [19.75, -8.0], [19.53, -8.53], [19.18, -8.68], [19.15, -8.75], [19.25, -9.0], [19.15, -9.25], [19.25, -9.5], [19.03, -10.03], [18.5, -10.25], [17.97, -10.03], [17.75, -9.5], [17.85, -9.25], [17.82, -9.18], [17.47, -9.03], [17.32, -8.68], [16.97, -8.53], [16.75, -8.0], [16.85, -7.75], [16.75, -7.5], [16.97, -6.97], [17.5, -6.75]]], [[[18.75, -4.35], [19.0, -4.25], [19.53, -4.47], [19.75, -5.0], [19.65, -5.25], [19.75, -5.5], [19.53, -6.03], [19.0, -6.25], [18.5, -6.04], [18.0, -6.25], [17.47, -6.03], [17.25, -5.5], [17.47, -4.97], [17.82, -4.82], [17.97, -4.47], [18.5, -4.25], [18.75, -4.35]]]]}, "2025-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.5, -4.25], [19.03, -4.47], [19.25, -5.0], [19.03, -5.53], [18.5, -5.75], [17.97, -5.53], [17.75, -5.0], [17.97, -4.47], [18.5, -4.25]]]]}, "2025-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.5, -4.25], [19.03, -4.47], [19.25, -5.0], [19.03, -5.53], [18.5, -5.75], [17.97, -5.53], [17.75, -5.0], [17.97, -4.47], [18.5, -4.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.0595069609471466}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.613879014365881}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.378803931342247, 25.40389883003985, 25.551386994006634, 25.249052029564325, 26.920709228515648, 28.495764668782556]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.77941157023116, 27.47705485026046, 27.640359497070335, 27.10807825724288, 26.920709228515648, 28.495764668782556]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3571226906903082, 1.5746834573677588, 1.730705733312531, 1.478544798995216, 1.5134693008756699, 3.0595069609471466]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.37058358067452, 2.1124576649675078, 2.4622666284390107, 1.7155405231293912, 1.5134693008756699, 3.0595069609471466]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3240119531919772, 1.5268408518364993, 1.6531532195400036, 1.3966544349063075, 1.2799050284605025, 2.600712526622944]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3766196152717796, 1.9016424513625043, 2.196559843113654, 1.591158381876394, 1.2799050284605025, 2.600712526622944]}}