{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:39.949591", "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": "2011-Jan-17_to_2011-Jan-20_252.5_31.5"}, "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": 2011010002272}, "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 17 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 20 2011"}, "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": 86191.63404002215}, "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", "W.North-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": 31.5}, "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": 252.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "252.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 250.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 254.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 30.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 34.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-01-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.75, 33.0], [-108.53, 33.53], [-108.18, 33.68], [-108.03, 34.03], [-107.68, 34.18], [-107.53, 34.53], [-107.0, 34.75], [-106.7, 34.63], [-106.53, 35.03], [-106.0, 35.25], [-105.47, 35.03], [-105.25, 34.5], [-105.35, 34.25], [-105.25, 34.0], [-105.35, 33.75], [-105.32, 33.68], [-104.97, 33.53], [-104.75, 33.0], [-104.97, 32.47], [-105.5, 32.25], [-106.03, 32.47], [-106.18, 32.82], [-106.3, 32.88], [-106.47, 32.47], [-106.82, 32.32], [-106.85, 32.25], [-106.75, 32.0], [-106.85, 31.75], [-106.75, 31.5], [-106.97, 30.97], [-107.5, 30.75], [-108.03, 30.97], [-108.18, 31.32], [-108.25, 31.35], [-108.5, 31.25], [-109.03, 31.47], [-109.25, 32.0], [-109.03, 32.53], [-108.68, 32.68], [-108.65, 32.75], [-108.75, 33.0]]]]}, "2011-01-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-110.25, 31.5], [-110.03, 32.03], [-109.68, 32.18], [-109.65, 32.25], [-109.75, 32.5], [-109.53, 33.03], [-109.0, 33.25], [-108.75, 33.15], [-108.68, 33.18], [-108.53, 33.53], [-108.18, 33.68], [-108.03, 34.03], [-107.68, 34.18], [-107.53, 34.53], [-107.0, 34.75], [-106.7, 34.63], [-106.53, 35.03], [-106.0, 35.25], [-105.47, 35.03], [-105.25, 34.5], [-105.35, 34.25], [-105.25, 34.0], [-105.35, 33.75], [-105.32, 33.68], [-104.97, 33.53], [-104.75, 33.0], [-104.97, 32.47], [-105.5, 32.25], [-105.75, 32.35], [-106.0, 32.25], [-106.25, 32.35], [-106.37, 32.3], [-106.32, 32.18], [-105.97, 32.03], [-105.75, 31.5], [-105.85, 31.25], [-105.75, 31.0], [-105.97, 30.47], [-106.5, 30.25], [-106.75, 30.35], [-107.0, 30.25], [-107.25, 30.35], [-107.5, 30.25], [-107.75, 30.35], [-108.0, 30.25], [-108.5, 30.46], [-109.0, 30.25], [-109.53, 30.47], [-109.68, 30.82], [-110.03, 30.97], [-110.25, 31.5]]]]}, "2011-01-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-110.25, 31.5], [-110.03, 32.03], [-109.68, 32.18], [-109.65, 32.25], [-109.75, 32.5], [-109.53, 33.03], [-109.0, 33.25], [-108.75, 33.15], [-108.68, 33.18], [-108.53, 33.53], [-108.18, 33.68], [-108.03, 34.03], [-107.68, 34.18], [-107.53, 34.53], [-107.0, 34.75], [-106.7, 34.63], [-106.53, 35.03], [-106.0, 35.25], [-105.47, 35.03], [-105.25, 34.5], [-105.35, 34.25], [-105.25, 34.0], [-105.35, 33.75], [-105.32, 33.68], [-104.97, 33.53], [-104.75, 33.0], [-104.97, 32.47], [-105.5, 32.25], [-105.75, 32.35], [-106.0, 32.25], [-106.25, 32.35], [-106.37, 32.3], [-106.32, 32.18], [-105.97, 32.03], [-105.75, 31.5], [-105.85, 31.25], [-105.75, 31.0], [-105.97, 30.47], [-106.5, 30.25], [-106.75, 30.35], [-107.0, 30.25], [-107.25, 30.35], [-107.5, 30.25], [-107.75, 30.35], [-108.0, 30.25], [-108.5, 30.46], [-109.0, 30.25], [-109.53, 30.47], [-109.68, 30.82], [-110.03, 30.97], [-110.25, 31.5]]]]}, "2011-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-110.25, 31.5], [-110.03, 32.03], [-109.68, 32.18], [-109.65, 32.25], [-109.75, 32.5], [-109.53, 33.03], [-109.0, 33.25], [-108.75, 33.15], [-108.5, 33.25], [-108.25, 33.15], [-108.0, 33.25], [-107.75, 33.15], [-107.5, 33.25], [-107.2, 33.13], [-107.03, 33.53], [-106.5, 33.75], [-106.25, 33.65], [-106.0, 33.75], [-105.47, 33.53], [-105.25, 33.0], [-105.47, 32.47], [-106.0, 32.25], [-106.25, 32.35], [-106.37, 32.3], [-106.32, 32.18], [-105.97, 32.03], [-105.75, 31.5], [-105.85, 31.25], [-105.75, 31.0], [-105.97, 30.47], [-106.5, 30.25], [-106.75, 30.35], [-107.0, 30.25], [-107.25, 30.35], [-107.5, 30.25], [-107.75, 30.35], [-108.0, 30.25], [-108.5, 30.46], [-109.0, 30.25], [-109.53, 30.47], [-109.68, 30.82], [-110.03, 30.97], [-110.25, 31.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.768474536301767}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.351162249787798}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.054752383074117, 12.674996172589601, 11.23285820319336, 12.479699343305299]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.664712716624592, 16.239987930421933, 14.695624962677869, 14.744094493270438]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.220071056543347, 6.32620449924781, 4.806280292424993, 4.825169617296653]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.340527815085352, 7.768474536301767, 5.89403413350783, 5.875361750120362]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4228224300842895, 1.7570209506374834, 1.3644618821789813, 1.4288118926810203]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1021571447214504, 2.1369165768923, 1.596817785418033, 1.6632171120384915]}}