{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:21:09.861543", "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": "2019-Dec-25_to_2019-Dec-28_258.0_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": 2019120002407}, "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 25 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 28 2019"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 72094.94113377479}, "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": ["C.North-America", "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": 258.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "258.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 257.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 260.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 28.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 31.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-12-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.65, 31.25], [-102.75, 31.5], [-102.53, 32.03], [-102.0, 32.25], [-101.75, 32.15], [-101.5, 32.25], [-101.25, 32.15], [-101.0, 32.25], [-100.47, 32.03], [-100.32, 31.68], [-100.25, 31.65], [-100.0, 31.75], [-99.47, 31.53], [-99.25, 31.0], [-99.47, 30.47], [-99.82, 30.32], [-99.97, 29.97], [-100.5, 29.75], [-100.75, 29.85], [-101.0, 29.75], [-101.25, 29.85], [-101.5, 29.75], [-101.75, 29.85], [-102.0, 29.75], [-102.53, 29.97], [-102.75, 30.5], [-102.65, 30.75], [-102.75, 31.0], [-102.65, 31.25]]]]}, "2019-12-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.65, 30.75], [-102.75, 31.0], [-102.65, 31.25], [-102.75, 31.5], [-102.53, 32.03], [-102.0, 32.25], [-101.75, 32.15], [-101.5, 32.25], [-101.25, 32.15], [-101.0, 32.25], [-100.47, 32.03], [-100.32, 31.68], [-100.25, 31.65], [-100.0, 31.75], [-99.47, 31.53], [-99.32, 31.18], [-98.97, 31.03], [-98.75, 30.5], [-98.96, 30.0], [-98.75, 29.5], [-98.85, 29.25], [-98.75, 29.0], [-98.97, 28.47], [-99.5, 28.25], [-99.75, 28.35], [-100.0, 28.25], [-100.25, 28.35], [-100.5, 28.25], [-100.75, 28.35], [-101.0, 28.25], [-101.53, 28.47], [-101.68, 28.82], [-102.03, 28.97], [-102.18, 29.32], [-102.53, 29.47], [-102.75, 30.0], [-102.65, 30.25], [-102.75, 30.5], [-102.65, 30.75]]]]}, "2019-12-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.65, 30.75], [-102.75, 31.0], [-102.65, 31.25], [-102.75, 31.5], [-102.53, 32.03], [-102.0, 32.25], [-101.75, 32.15], [-101.5, 32.25], [-101.25, 32.15], [-101.0, 32.25], [-100.47, 32.03], [-100.32, 31.68], [-100.25, 31.65], [-100.0, 31.75], [-99.47, 31.53], [-99.32, 31.18], [-98.97, 31.03], [-98.75, 30.5], [-98.96, 30.0], [-98.75, 29.5], [-98.85, 29.25], [-98.75, 29.0], [-98.97, 28.47], [-99.5, 28.25], [-99.75, 28.35], [-100.0, 28.25], [-100.25, 28.35], [-100.5, 28.25], [-100.75, 28.35], [-101.0, 28.25], [-101.53, 28.47], [-101.68, 28.82], [-102.03, 28.97], [-102.18, 29.32], [-102.53, 29.47], [-102.75, 30.0], [-102.65, 30.25], [-102.75, 30.5], [-102.65, 30.75]]]]}, "2019-12-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.65, 30.75], [-102.75, 31.0], [-102.65, 31.25], [-102.75, 31.5], [-102.53, 32.03], [-102.0, 32.25], [-101.75, 32.15], [-101.5, 32.25], [-101.25, 32.15], [-101.0, 32.25], [-100.47, 32.03], [-100.32, 31.68], [-100.25, 31.65], [-100.0, 31.75], [-99.47, 31.53], [-99.32, 31.18], [-98.97, 31.03], [-98.75, 30.5], [-98.96, 30.0], [-98.75, 29.5], [-98.85, 29.25], [-98.75, 29.0], [-98.97, 28.47], [-99.5, 28.25], [-99.75, 28.35], [-100.0, 28.25], [-100.25, 28.35], [-100.5, 28.25], [-100.75, 28.35], [-101.0, 28.25], [-101.53, 28.47], [-101.68, 28.82], [-102.03, 28.97], [-102.18, 29.32], [-102.53, 29.47], [-102.75, 30.0], [-102.65, 30.25], [-102.75, 30.5], [-102.65, 30.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.726725377387424}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.169594739868904}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.987053454386967, 15.027860678021057, 16.891838367869582, 16.935090469807847]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.367288681742878, 17.880816102057167, 19.557416134538357, 19.901918465877657]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.474776532287227, 6.160649244433254, 7.890062584457381, 7.7668804829745985]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.202297800586734, 7.079630554273649, 8.726725377387424, 8.64898100915741]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4728464653098696, 1.456931560474858, 1.8811436302193163, 1.879057680264309]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5698445756976984, 1.5616241074904444, 2.1295099740211656, 2.3260600077507476]}}