{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:43.631776", "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": "2017-Dec-06_to_2017-Dec-17_75.0_21.0"}, "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": 2017120001587}, "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 06 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 17 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 12}, "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": 51998.776742668546}, "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": ["India"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 21.0}, "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": 75.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "75.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 73.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 78.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-12-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.47, 20.47], [74.25, 21.0], [74.47, 21.53], [75.0, 21.75], [75.25, 21.65], [75.5, 21.75], [75.75, 21.65], [76.0, 21.75], [76.25, 21.65], [76.5, 21.75], [76.75, 21.65], [77.0, 21.75], [77.25, 21.65], [77.5, 21.75], [78.03, 21.53], [78.18, 21.18], [78.53, 21.03], [78.75, 20.5], [78.53, 19.97], [78.0, 19.75], [77.47, 19.97], [77.32, 20.32], [77.25, 20.35], [77.0, 20.25], [76.75, 20.35], [76.5, 20.25], [76.25, 20.35], [76.0, 20.25], [75.75, 20.35], [75.5, 20.25], [75.25, 20.35], [75.0, 20.25], [74.47, 20.47]]]]}, "2017-12-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.47, 20.47], [74.25, 21.0], [74.47, 21.53], [75.0, 21.75], [75.25, 21.65], [75.5, 21.75], [75.75, 21.65], [76.0, 21.75], [76.25, 21.65], [76.5, 21.75], [76.75, 21.65], [77.0, 21.75], [77.25, 21.65], [77.5, 21.75], [78.03, 21.53], [78.18, 21.18], [78.53, 21.03], [78.75, 20.5], [78.53, 19.97], [78.0, 19.75], [77.47, 19.97], [77.32, 20.32], [77.25, 20.35], [77.0, 20.25], [76.75, 20.35], [76.5, 20.25], [76.25, 20.35], [76.0, 20.25], [75.75, 20.35], [75.5, 20.25], [75.25, 20.35], [75.0, 20.25], [74.47, 20.47]]]]}, "2017-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[73.46, 21.0], [73.25, 21.5], [73.47, 22.03], [74.0, 22.25], [74.25, 22.15], [74.5, 22.25], [74.75, 22.15], [75.0, 22.25], [75.53, 22.03], [75.68, 21.68], [75.75, 21.65], [76.0, 21.75], [76.25, 21.65], [76.5, 21.75], [76.75, 21.65], [77.0, 21.75], [77.25, 21.65], [77.5, 21.75], [78.03, 21.53], [78.18, 21.18], [78.53, 21.03], [78.75, 20.5], [78.53, 19.97], [78.0, 19.75], [77.47, 19.97], [77.32, 20.32], [77.25, 20.35], [77.0, 20.25], [76.75, 20.35], [76.5, 20.25], [76.25, 20.35], [76.0, 20.25], [75.75, 20.35], [75.68, 20.32], [75.53, 19.97], [75.18, 19.82], [75.15, 19.75], [75.25, 19.5], [75.03, 18.97], [74.5, 18.75], [73.97, 18.97], [73.82, 19.32], [73.47, 19.47], [73.25, 20.0], [73.35, 20.25], [73.25, 20.5], [73.46, 21.0]]]]}, "2017-12-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[73.25, 21.5], [73.47, 22.03], [74.0, 22.25], [74.25, 22.15], [74.5, 22.25], [74.75, 22.15], [75.0, 22.25], [75.53, 22.03], [75.68, 21.68], [75.75, 21.65], [76.0, 21.75], [76.53, 21.53], [76.75, 21.0], [76.53, 20.47], [76.0, 20.25], [75.75, 20.35], [75.68, 20.32], [75.53, 19.97], [75.18, 19.82], [75.15, 19.75], [75.25, 19.5], [75.03, 18.97], [74.5, 18.75], [73.97, 18.97], [73.82, 19.32], [73.47, 19.47], [73.25, 20.0], [73.35, 20.25], [73.25, 20.5], [73.46, 21.0], [73.25, 21.5]]], [[[78.03, 21.53], [78.25, 21.0], [78.03, 20.47], [77.5, 20.25], [76.97, 20.47], [76.75, 21.0], [76.97, 21.53], [77.5, 21.75], [78.03, 21.53]]]]}, "2017-12-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[73.46, 21.0], [73.25, 21.5], [73.47, 22.03], [74.0, 22.25], [74.25, 22.15], [74.5, 22.25], [74.75, 22.15], [75.0, 22.25], [75.53, 22.03], [75.68, 21.68], [76.03, 21.53], [76.25, 21.0], [76.03, 20.47], [75.68, 20.32], [75.53, 19.97], [75.18, 19.82], [75.15, 19.75], [75.25, 19.5], [75.03, 18.97], [74.5, 18.75], [73.97, 18.97], [73.82, 19.32], [73.47, 19.47], [73.25, 20.0], [73.35, 20.25], [73.25, 20.5], [73.46, 21.0]]]]}, "2017-12-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.47, 21.53], [75.0, 21.75], [75.25, 21.65], [75.5, 21.75], [75.75, 21.65], [76.0, 21.75], [76.53, 21.53], [76.75, 21.0], [76.53, 20.47], [76.0, 20.25], [75.75, 20.35], [75.68, 20.32], [75.53, 19.97], [75.13, 19.8], [75.25, 19.5], [75.03, 18.97], [74.5, 18.75], [73.97, 18.97], [73.75, 19.5], [73.97, 20.03], [74.38, 20.2], [74.25, 20.5], [74.35, 20.75], [74.25, 21.0], [74.47, 21.53]]]]}, "2017-12-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.47, 20.47], [74.25, 21.0], [74.47, 21.53], [75.0, 21.75], [75.5, 21.54], [76.0, 21.75], [76.53, 21.53], [76.75, 21.0], [76.53, 20.47], [76.0, 20.25], [75.5, 20.46], [75.0, 20.25], [74.47, 20.47]]]]}, "2017-12-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.47, 20.47], [74.25, 21.0], [74.47, 21.53], [75.0, 21.75], [75.5, 21.54], [76.0, 21.75], [76.53, 21.53], [76.75, 21.0], [76.53, 20.47], [76.0, 20.25], [75.5, 20.46], [75.0, 20.25], [74.47, 20.47]]]]}, "2017-12-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.97, 22.53], [75.5, 22.75], [76.03, 22.53], [76.25, 22.0], [76.13, 21.7], [76.53, 21.53], [76.75, 21.0], [76.53, 20.47], [76.0, 20.25], [75.75, 20.35], [75.5, 20.25], [75.25, 20.35], [75.0, 20.25], [74.47, 20.47], [74.25, 21.0], [74.47, 21.53], [74.88, 21.7], [74.75, 22.0], [74.97, 22.53]]]]}, "2017-12-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[73.75, 21.5], [73.97, 22.03], [74.5, 22.25], [74.75, 22.15], [74.82, 22.18], [74.97, 22.53], [75.5, 22.75], [76.03, 22.53], [76.25, 22.0], [76.13, 21.7], [76.53, 21.53], [76.75, 21.0], [76.53, 20.47], [76.0, 20.25], [75.75, 20.35], [75.5, 20.25], [75.25, 20.35], [75.0, 20.25], [74.47, 20.47], [74.32, 20.82], [73.97, 20.97], [73.75, 21.5]]]]}, "2017-12-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[73.75, 21.5], [73.97, 22.03], [74.5, 22.25], [74.75, 22.15], [74.82, 22.18], [74.97, 22.53], [75.5, 22.75], [76.03, 22.53], [76.25, 22.0], [76.13, 21.7], [76.53, 21.53], [76.75, 21.0], [76.53, 20.47], [76.0, 20.25], [75.75, 20.35], [75.5, 20.25], [75.25, 20.35], [75.0, 20.25], [74.47, 20.47], [74.32, 20.82], [73.97, 20.97], [73.75, 21.5]]]]}, "2017-12-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[73.75, 21.5], [73.97, 22.03], [74.5, 22.25], [74.75, 22.15], [75.0, 22.25], [75.53, 22.03], [75.68, 21.68], [75.75, 21.65], [76.0, 21.75], [76.53, 21.53], [76.75, 21.0], [76.53, 20.47], [76.0, 20.25], [75.75, 20.35], [75.5, 20.25], [75.25, 20.35], [75.0, 20.25], [74.47, 20.47], [74.32, 20.82], [73.97, 20.97], [73.75, 21.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.7326129166795}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.8511130694951707}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.323559993242668, 24.284130530158507, 24.11956524623406, 24.258432557839683, 23.781006149173834, 24.384971077684384, 24.0496605265746, 24.153711799080725, 23.92655230447417, 24.535997812870903, 24.039850758311104, 23.44543560643308]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.34238698177961, 25.1935363110008, 25.49130319666716, 25.59814009379147, 25.11540773347184, 24.959150578413926, 24.13467123551345, 24.28719237637756, 24.57001520526825, 25.713694357368354, 24.98274645753338, 23.753859964168328]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.6894429999001495, 2.7632549495747623, 2.5957003468507094, 2.8094651052762623, 2.4350282934231586, 3.024594866247264, 2.8365918479702543, 3.0949410578847676, 3.2078587914129315, 3.828288422933307, 3.4203334671043137, 2.777797571904807]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.566219889015258, 3.540505337135073, 3.7754447447409234, 3.718684551387639, 3.3616943843997547, 3.8152120939591327, 2.9674545244681667, 3.1683082199627393, 3.544807301010053, 4.7326129166795, 4.114928665550622, 2.974365578865161]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7361568708849864, 1.7455320459126729, 1.6316191899148726, 1.7367673587783075, 1.5289205482865358, 1.7050972166988039, 1.5618044824463602, 1.670033872135726, 1.6907431458696331, 2.197503438658462, 2.0398521258280637, 1.6877320495049077]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2288965394316835, 2.1674525148957984, 2.225495953951756, 2.2283426908228354, 1.93172533603539, 2.141975025831512, 1.624985225618723, 1.6996609408931027, 1.8807816097987071, 2.667094396112055, 2.377687723500936, 1.8138277285527526]}}