{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:40.628434", "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": "2015-Aug-05_to_2015-Aug-14_260.5_30.5"}, "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": 2015080001635}, "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": "August 05 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 14 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 10}, "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": 95398.40142540797}, "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": ["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": 30.5}, "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": 260.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "260.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 259.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 263.25}, "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": 32.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.03, 32.03], [-99.68, 32.18], [-99.53, 32.53], [-99.0, 32.75], [-98.75, 32.65], [-98.5, 32.75], [-97.97, 32.53], [-97.75, 32.0], [-97.85, 31.75], [-97.75, 31.5], [-97.97, 30.97], [-98.5, 30.75], [-98.75, 30.85], [-98.82, 30.82], [-98.97, 30.47], [-99.5, 30.25], [-100.03, 30.47], [-100.25, 31.0], [-100.15, 31.25], [-100.25, 31.5], [-100.03, 32.03]]]]}, "2015-08-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.53, 32.03], [-100.18, 32.18], [-100.03, 32.53], [-99.5, 32.75], [-99.25, 32.65], [-99.18, 32.68], [-99.03, 33.03], [-98.5, 33.25], [-98.25, 33.15], [-98.0, 33.25], [-97.47, 33.03], [-97.25, 32.5], [-97.35, 32.25], [-97.25, 32.0], [-97.35, 31.75], [-97.25, 31.5], [-97.47, 30.97], [-97.82, 30.82], [-97.97, 30.47], [-98.32, 30.32], [-98.47, 29.97], [-99.0, 29.75], [-99.25, 29.85], [-99.5, 29.75], [-100.03, 29.97], [-100.18, 30.32], [-100.53, 30.47], [-100.75, 31.0], [-100.65, 31.25], [-100.75, 31.5], [-100.53, 32.03]]]]}, "2015-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.53, 32.03], [-100.18, 32.18], [-100.03, 32.53], [-99.5, 32.75], [-99.25, 32.65], [-99.18, 32.68], [-99.03, 33.03], [-98.5, 33.25], [-98.25, 33.15], [-98.0, 33.25], [-97.47, 33.03], [-97.25, 32.5], [-97.35, 32.25], [-97.25, 32.0], [-97.35, 31.75], [-97.25, 31.5], [-97.47, 30.97], [-97.82, 30.82], [-97.97, 30.47], [-98.32, 30.32], [-98.47, 29.97], [-99.0, 29.75], [-99.25, 29.85], [-99.5, 29.75], [-100.03, 29.97], [-100.18, 30.32], [-100.53, 30.47], [-100.75, 31.0], [-100.65, 31.25], [-100.75, 31.5], [-100.53, 32.03]]]]}, "2015-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.53, 32.03], [-100.18, 32.18], [-100.03, 32.53], [-99.5, 32.75], [-99.25, 32.65], [-99.18, 32.68], [-99.03, 33.03], [-98.5, 33.25], [-98.25, 33.15], [-98.0, 33.25], [-97.47, 33.03], [-97.25, 32.5], [-97.35, 32.25], [-97.25, 32.0], [-97.35, 31.75], [-97.25, 31.5], [-97.47, 30.97], [-97.82, 30.82], [-97.97, 30.47], [-98.32, 30.32], [-98.47, 29.97], [-99.0, 29.75], [-99.25, 29.85], [-99.5, 29.75], [-100.03, 29.97], [-100.18, 30.32], [-100.53, 30.47], [-100.75, 31.0], [-100.65, 31.25], [-100.75, 31.5], [-100.53, 32.03]]]]}, "2015-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.53, 32.03], [-100.18, 32.18], [-100.03, 32.53], [-99.5, 32.75], [-99.25, 32.65], [-99.18, 32.68], [-99.03, 33.03], [-98.5, 33.25], [-98.25, 33.15], [-98.0, 33.25], [-97.75, 33.15], [-97.5, 33.25], [-97.25, 33.15], [-97.0, 33.25], [-96.47, 33.03], [-96.25, 32.5], [-96.47, 31.97], [-96.82, 31.82], [-96.97, 31.47], [-97.32, 31.32], [-97.35, 31.25], [-97.25, 31.0], [-97.47, 30.47], [-98.0, 30.25], [-98.25, 30.35], [-98.32, 30.32], [-98.47, 29.97], [-99.0, 29.75], [-99.25, 29.85], [-99.5, 29.75], [-100.03, 29.97], [-100.18, 30.32], [-100.53, 30.47], [-100.75, 31.0], [-100.65, 31.25], [-100.75, 31.5], [-100.53, 32.03]]]]}, "2015-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.75, 31.5], [-100.53, 32.03], [-100.18, 32.18], [-100.03, 32.53], [-99.5, 32.75], [-99.25, 32.65], [-99.18, 32.68], [-99.03, 33.03], [-98.5, 33.25], [-98.25, 33.15], [-98.0, 33.25], [-97.75, 33.15], [-97.5, 33.25], [-97.25, 33.15], [-97.0, 33.25], [-96.47, 33.03], [-96.25, 32.5], [-96.47, 31.97], [-96.82, 31.82], [-96.85, 31.75], [-96.75, 31.5], [-96.85, 31.25], [-96.75, 31.0], [-96.97, 30.47], [-97.32, 30.32], [-97.47, 29.97], [-98.0, 29.75], [-98.25, 29.85], [-98.32, 29.82], [-98.47, 29.47], [-99.0, 29.25], [-99.25, 29.35], [-99.5, 29.25], [-100.03, 29.47], [-100.18, 29.82], [-100.25, 29.85], [-100.5, 29.75], [-101.03, 29.97], [-101.25, 30.5], [-101.03, 31.03], [-100.68, 31.18], [-100.65, 31.25], [-100.75, 31.5]]]]}, "2015-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.18, 31.68], [-100.15, 31.75], [-100.25, 32.0], [-100.03, 32.53], [-99.5, 32.75], [-99.25, 32.65], [-99.18, 32.68], [-99.03, 33.03], [-98.5, 33.25], [-98.25, 33.15], [-98.0, 33.25], [-97.75, 33.15], [-97.5, 33.25], [-97.25, 33.15], [-97.0, 33.25], [-96.47, 33.03], [-96.25, 32.5], [-96.47, 31.97], [-96.82, 31.82], [-96.85, 31.75], [-96.75, 31.5], [-96.85, 31.25], [-96.75, 31.0], [-96.97, 30.47], [-97.32, 30.32], [-97.35, 30.25], [-97.3, 30.12], [-97.0, 30.25], [-96.47, 30.03], [-96.25, 29.5], [-96.47, 28.97], [-97.0, 28.75], [-97.53, 28.97], [-97.7, 29.38], [-98.0, 29.25], [-98.25, 29.35], [-98.5, 29.25], [-98.75, 29.35], [-99.0, 29.25], [-99.25, 29.35], [-99.5, 29.25], [-100.03, 29.47], [-100.18, 29.82], [-100.25, 29.85], [-100.5, 29.75], [-101.03, 29.97], [-101.25, 30.5], [-101.03, 31.03], [-100.68, 31.18], [-100.53, 31.53], [-100.18, 31.68]]]]}, "2015-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.18, 31.68], [-100.15, 31.75], [-100.25, 32.0], [-100.03, 32.53], [-99.5, 32.75], [-99.25, 32.65], [-99.0, 32.75], [-98.47, 32.53], [-98.32, 32.18], [-98.25, 32.15], [-98.0, 32.25], [-97.75, 32.15], [-97.5, 32.25], [-96.97, 32.03], [-96.75, 31.5], [-96.85, 31.25], [-96.75, 31.0], [-96.96, 30.5], [-96.82, 30.18], [-96.47, 30.03], [-96.25, 29.5], [-96.35, 29.25], [-96.25, 29.0], [-96.47, 28.47], [-97.0, 28.25], [-97.25, 28.35], [-97.5, 28.25], [-98.03, 28.47], [-98.25, 29.0], [-98.15, 29.25], [-98.18, 29.32], [-98.25, 29.35], [-98.5, 29.25], [-98.75, 29.35], [-99.0, 29.25], [-99.25, 29.35], [-99.5, 29.25], [-100.03, 29.47], [-100.18, 29.82], [-100.25, 29.85], [-100.5, 29.75], [-101.03, 29.97], [-101.25, 30.5], [-101.03, 31.03], [-100.68, 31.18], [-100.53, 31.53], [-100.18, 31.68]]]]}, "2015-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.0, 31.75], [-99.47, 31.53], [-99.32, 31.18], [-99.25, 31.15], [-99.18, 31.18], [-99.03, 31.53], [-98.5, 31.75], [-98.25, 31.65], [-98.0, 31.75], [-97.47, 31.53], [-97.25, 31.0], [-97.35, 30.75], [-97.32, 30.68], [-96.97, 30.53], [-96.82, 30.18], [-96.47, 30.03], [-96.25, 29.5], [-96.35, 29.25], [-96.25, 29.0], [-96.47, 28.47], [-97.0, 28.25], [-97.25, 28.35], [-97.5, 28.25], [-98.03, 28.47], [-98.25, 29.0], [-98.15, 29.25], [-98.18, 29.32], [-98.25, 29.35], [-98.5, 29.25], [-98.75, 29.35], [-99.0, 29.25], [-99.25, 29.35], [-99.5, 29.25], [-100.03, 29.47], [-100.18, 29.82], [-100.25, 29.85], [-100.5, 29.75], [-101.03, 29.97], [-101.25, 30.5], [-101.03, 31.03], [-100.68, 31.18], [-100.53, 31.53], [-100.0, 31.75]]]]}, "2015-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.0, 31.75], [-99.47, 31.53], [-99.32, 31.18], [-99.25, 31.15], [-99.0, 31.25], [-98.75, 31.15], [-98.5, 31.25], [-98.25, 31.15], [-98.0, 31.25], [-97.47, 31.03], [-97.32, 30.68], [-96.97, 30.53], [-96.82, 30.18], [-96.47, 30.03], [-96.25, 29.5], [-96.35, 29.25], [-96.25, 29.0], [-96.47, 28.47], [-97.0, 28.25], [-97.25, 28.35], [-97.5, 28.25], [-98.03, 28.47], [-98.25, 29.0], [-98.15, 29.25], [-98.18, 29.32], [-98.25, 29.35], [-98.5, 29.25], [-98.75, 29.35], [-99.0, 29.25], [-99.25, 29.35], [-99.5, 29.25], [-100.03, 29.47], [-100.18, 29.82], [-100.25, 29.85], [-100.5, 29.75], [-101.03, 29.97], [-101.25, 30.5], [-101.03, 31.03], [-100.68, 31.18], [-100.53, 31.53], [-100.0, 31.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.504653019201044}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.169760234903429}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.453120264048664, 32.80920068688454, 32.872332698173636, 32.556238676957605, 32.86429260844608, 32.826064945582175, 32.65581625231272, 32.63926790253072, 31.746878489632707, 31.574743205890172]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.77642648386728, 33.796771356526904, 33.85981460229476, 33.31858163064976, 33.81286750438261, 34.14325770593979, 34.08566367689389, 33.595234171918094, 32.708437025997966, 32.55728413754139]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.779312750837287, 3.150660073400231, 3.2486369379001907, 2.9225642952124833, 3.1910107065164652, 3.422220432754888, 3.3938241176315755, 3.4630490864406624, 2.6843770674032204, 2.6285125998768457]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.8786196838016735, 3.5665079339616454, 3.676343825968843, 3.3495652287576263, 3.8421674045391114, 4.346094664448742, 4.504653019201044, 4.3531000664839326, 3.144360441954575, 3.2330773394530183]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2220963337991866, 1.4181445828037231, 1.4286776129051346, 1.2531216655549033, 1.343425692427611, 1.452716850469581, 1.463375457112476, 1.655503014508292, 1.367775449291717, 1.3067328314872144]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2537579514166066, 1.5543809301900673, 1.5822075356464889, 1.4144325826539552, 1.5462190222098422, 1.7450941408476708, 1.8188868304600443, 2.0951774814772413, 1.4828392553766612, 1.4781608606373222]}}