{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:22.759580", "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-Dec-15_to_2013-Dec-19_247.5_31.0"}, "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": 2013120002005}, "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": "December 15 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 19 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": 58171.55621252827}, "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": ["Mexico", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Central-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North 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": []}, "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": 31.0}, "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": 247.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "247.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 246.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 250.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 29.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 32.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-12-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-112.03, 28.97], [-112.25, 29.5], [-112.03, 30.03], [-111.5, 30.25], [-110.97, 30.03], [-110.75, 29.5], [-110.97, 28.97], [-111.5, 28.75], [-112.03, 28.97]]], [[[-113.03, 30.47], [-113.25, 31.0], [-113.03, 31.53], [-112.5, 31.75], [-111.97, 31.53], [-111.75, 31.0], [-111.97, 30.47], [-112.5, 30.25], [-113.03, 30.47]]]]}, "2013-12-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-114.25, 32.0], [-114.03, 32.53], [-113.5, 32.75], [-113.25, 32.65], [-113.0, 32.75], [-112.75, 32.65], [-112.5, 32.75], [-111.97, 32.53], [-111.75, 32.0], [-111.85, 31.75], [-111.75, 31.5], [-111.85, 31.25], [-111.75, 31.0], [-111.87, 30.7], [-111.75, 30.65], [-111.5, 30.75], [-110.97, 30.53], [-110.75, 30.0], [-110.85, 29.75], [-110.75, 29.5], [-110.97, 28.97], [-111.5, 28.75], [-112.03, 28.97], [-112.18, 29.32], [-112.53, 29.47], [-112.75, 30.0], [-112.62, 30.3], [-113.03, 30.47], [-113.18, 30.82], [-113.53, 30.97], [-113.68, 31.32], [-114.03, 31.47], [-114.25, 32.0]]]]}, "2013-12-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": 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[-110.68, 31.68], [-110.57, 31.93], [-110.82, 31.82]]]]}, "2013-12-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-114.03, 33.03], [-113.5, 33.25], [-113.25, 33.15], [-113.0, 33.25], [-112.47, 33.03], [-112.32, 32.68], [-112.25, 32.65], [-112.0, 32.75], [-111.75, 32.65], [-111.68, 32.68], [-111.53, 33.03], [-111.0, 33.25], [-110.47, 33.03], [-110.25, 32.5], [-110.43, 32.07], [-110.0, 32.25], [-109.47, 32.03], [-109.25, 31.5], [-109.47, 30.97], [-109.82, 30.82], [-109.85, 30.75], [-109.82, 30.68], [-109.47, 30.53], [-109.25, 30.0], [-109.47, 29.47], [-110.0, 29.25], [-110.25, 29.35], [-110.5, 29.25], [-110.8, 29.38], [-110.97, 28.97], [-111.5, 28.75], [-112.03, 28.97], [-112.18, 29.32], [-112.53, 29.47], [-112.75, 30.0], [-112.65, 30.25], [-112.68, 30.32], [-113.03, 30.47], [-113.18, 30.82], [-113.53, 30.97], [-113.68, 31.32], [-114.03, 31.47], [-114.25, 32.0], [-114.15, 32.25], [-114.25, 32.5], [-114.03, 33.03]], [[-111.62, 31.3], [-111.75, 31.35], [-111.82, 31.32], [-111.85, 31.25], [-111.82, 31.18], [-111.7, 31.13], [-111.62, 31.3]], [[-110.82, 31.82], [-110.87, 31.7], [-110.75, 31.65], [-110.68, 31.68], [-110.57, 31.93], [-110.82, 31.82]]]]}, "2013-12-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-114.03, 31.97], [-114.25, 32.5], [-114.03, 33.03], [-113.5, 33.25], [-113.25, 33.15], [-113.0, 33.25], [-112.47, 33.03], [-112.3, 32.63], [-112.0, 32.75], [-111.75, 32.65], [-111.68, 32.68], [-111.53, 33.03], [-111.0, 33.25], [-110.47, 33.03], [-110.25, 32.5], [-110.43, 32.07], [-110.0, 32.25], [-109.47, 32.03], [-109.25, 31.5], [-109.47, 30.97], [-109.82, 30.82], [-109.85, 30.75], [-109.82, 30.68], [-109.47, 30.53], [-109.25, 30.0], [-109.47, 29.47], [-110.0, 29.25], [-110.25, 29.35], [-110.5, 29.25], [-111.03, 29.47], [-111.18, 29.82], [-111.5, 29.96], [-112.0, 29.75], [-112.53, 29.97], [-112.75, 30.5], [-112.53, 31.03], [-112.0, 31.25], [-112.53, 31.47], [-112.7, 31.88], [-113.0, 31.75], [-113.25, 31.85], [-113.5, 31.75], [-114.03, 31.97]], [[-111.7, 31.13], [-111.62, 31.3], [-111.75, 31.35], [-112.0, 31.25], [-111.7, 31.13]], [[-110.82, 31.82], [-110.87, 31.7], [-110.75, 31.65], [-110.68, 31.68], [-110.57, 31.93], [-110.82, 31.82]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.887826019919828}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.689867289269585}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.17863640357973, 18.002769963068545, 16.5665181516095, 16.839123556386824, 14.548529629013785]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.809682845576447, 19.751259209228294, 19.79991322310849, 19.631306361177565, 17.705526144226553]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.2724617798388635, 4.311214028097027, 4.745910596008847, 5.137056631804871, 4.164603603529153]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.334389150079346, 5.334165190975739, 6.887826019919828, 6.866925326192927, 5.302557097824604]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5362718091573857, 1.5545892584318122, 1.7411338622068633, 1.8989954997153236, 1.5202795355069691]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6015792904949426, 1.9661279110494507, 2.3199062288911674, 2.362241617719435, 1.8607126726235512]}}