{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:55.159021", "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-Mar-16_to_2013-Mar-24_106.0_33.5"}, "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": 2013030001986}, "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": "March 16 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 24 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 9}, "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": 79547.61745891855}, "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": ["China"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.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": 33.5}, "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": 106.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "106.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 104.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 107.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 31.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-03-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[104.97, 34.03], [105.38, 34.2], [105.25, 34.5], [105.47, 35.03], [106.0, 35.25], [106.53, 35.03], [106.75, 34.5], [106.54, 34.0], [106.75, 33.5], [106.54, 33.0], [106.75, 32.5], [106.53, 31.97], [106.0, 31.75], [105.47, 31.97], [105.32, 32.32], [104.97, 32.47], [104.75, 33.0], [104.85, 33.25], [104.75, 33.5], [104.97, 34.03]]]]}, "2013-03-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[104.25, 34.0], [104.47, 34.53], [105.0, 34.75], [105.3, 34.63], [105.47, 35.03], [106.0, 35.25], [106.53, 35.03], [106.68, 34.68], [107.03, 34.53], [107.25, 34.0], [107.03, 33.47], [106.68, 33.32], [106.54, 33.0], [106.75, 32.5], [106.53, 31.97], [106.0, 31.75], [105.47, 31.97], [105.32, 32.32], [104.97, 32.47], [104.75, 33.0], [104.85, 33.25], [104.82, 33.32], [104.47, 33.47], [104.25, 34.0]]]]}, "2013-03-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[104.47, 35.53], [105.0, 35.75], [105.25, 35.65], [105.5, 35.75], [106.0, 35.54], [106.5, 35.75], [107.03, 35.53], [107.25, 35.0], [107.15, 34.75], [107.18, 34.68], [107.53, 34.53], [107.75, 34.0], [107.53, 33.47], [107.0, 33.25], [106.75, 33.35], [106.68, 33.32], [106.54, 33.0], [106.75, 32.5], [106.53, 31.97], [106.0, 31.75], [105.47, 31.97], [105.32, 32.32], [104.97, 32.47], [104.75, 33.0], [104.85, 33.25], [104.82, 33.32], [104.47, 33.47], [104.25, 34.0], [104.46, 34.5], [104.25, 35.0], [104.47, 35.53]]]]}, "2013-03-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.97, 36.03], [104.32, 36.18], [104.47, 36.53], [105.0, 36.75], [105.53, 36.53], [105.75, 36.0], [105.63, 35.7], [106.0, 35.54], [106.5, 35.75], [107.03, 35.53], [107.25, 35.0], [107.15, 34.75], [107.18, 34.68], [107.53, 34.53], [107.75, 34.0], [107.53, 33.47], [107.18, 33.32], [107.03, 32.97], [106.5, 32.75], [106.25, 32.85], [106.0, 32.75], [105.75, 32.85], [105.68, 32.82], [105.53, 32.47], [105.0, 32.25], [104.47, 32.47], [104.25, 33.0], [104.35, 33.25], [104.25, 33.5], [104.35, 33.75], [104.25, 34.0], [104.35, 34.25], [104.32, 34.32], [103.97, 34.47], [103.75, 35.0], [103.85, 35.25], [103.75, 35.5], [103.97, 36.03]]]]}, "2013-03-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.97, 36.03], [104.32, 36.18], [104.47, 36.53], [105.0, 36.75], [105.53, 36.53], [105.68, 36.18], [106.03, 36.03], [106.2, 35.63], [106.5, 35.75], [107.03, 35.53], [107.25, 35.0], [107.15, 34.75], [107.18, 34.68], [107.53, 34.53], [107.75, 34.0], [107.53, 33.47], [107.18, 33.32], [107.03, 32.97], [106.68, 32.82], [106.53, 32.47], [106.18, 32.32], [106.03, 31.97], [105.5, 31.75], [105.25, 31.85], [105.18, 31.82], [105.03, 31.47], [104.5, 31.25], [103.97, 31.47], [103.75, 32.0], [103.97, 32.53], [104.32, 32.68], [104.35, 32.75], [104.25, 33.0], [104.35, 33.25], [104.25, 33.5], [104.35, 33.75], [104.25, 34.0], [104.35, 34.25], [104.32, 34.32], [103.97, 34.47], [103.75, 35.0], [103.85, 35.25], [103.75, 35.5], [103.97, 36.03]]]]}, "2013-03-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.97, 33.03], [104.32, 33.18], [104.35, 33.25], [104.25, 33.5], [104.35, 33.75], [104.25, 34.0], [104.35, 34.25], [104.32, 34.32], [103.97, 34.47], [103.75, 35.0], [103.85, 35.25], [103.75, 35.5], [103.97, 36.03], [104.32, 36.18], [104.47, 36.53], [105.0, 36.75], [105.53, 36.53], [105.68, 36.18], [106.03, 36.03], [106.25, 35.5], [106.15, 35.25], [106.18, 35.18], [106.53, 35.03], [106.75, 34.5], [106.65, 34.25], [106.68, 34.18], [107.03, 34.03], [107.25, 33.5], [107.15, 33.25], [107.25, 33.0], [107.03, 32.47], [106.68, 32.32], [106.53, 31.97], [106.0, 31.75], [105.75, 31.85], [105.68, 31.82], [105.53, 31.47], [105.0, 31.25], [104.75, 31.35], [104.5, 31.25], [103.97, 31.47], [103.75, 32.0], [103.85, 32.25], [103.75, 32.5], [103.97, 33.03]]]]}, "2013-03-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.97, 33.03], [104.32, 33.18], [104.47, 33.53], [104.82, 33.68], [104.85, 33.75], [104.75, 34.0], [104.85, 34.25], [104.82, 34.32], [104.47, 34.47], [104.25, 35.0], [104.47, 35.53], [104.82, 35.68], [104.97, 36.03], [105.5, 36.25], [106.03, 36.03], [106.18, 35.68], [106.53, 35.53], [106.75, 35.0], [106.65, 34.75], [106.68, 34.68], [107.03, 34.53], [107.25, 34.0], [107.04, 33.5], [107.25, 33.0], [107.03, 32.47], [106.68, 32.32], [106.53, 31.97], [106.0, 31.75], [105.75, 31.85], [105.68, 31.82], [105.53, 31.47], [105.0, 31.25], [104.75, 31.35], [104.5, 31.25], [103.97, 31.47], [103.75, 32.0], [103.85, 32.25], [103.75, 32.5], [103.97, 33.03]]]]}, "2013-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.97, 33.03], [104.32, 33.18], [104.47, 33.53], [104.82, 33.68], [104.85, 33.75], [104.75, 34.0], [104.85, 34.25], [104.82, 34.32], [104.47, 34.47], [104.25, 35.0], [104.47, 35.53], [104.82, 35.68], [104.97, 36.03], [105.5, 36.25], [106.03, 36.03], [106.18, 35.68], [106.53, 35.53], [106.75, 35.0], [106.65, 34.75], [106.68, 34.68], [107.03, 34.53], [107.25, 34.0], [107.04, 33.5], [107.25, 33.0], [107.03, 32.47], [106.68, 32.32], [106.53, 31.97], [106.0, 31.75], [105.75, 31.85], [105.68, 31.82], [105.53, 31.47], [105.0, 31.25], [104.75, 31.35], [104.5, 31.25], [103.97, 31.47], [103.75, 32.0], [103.85, 32.25], [103.75, 32.5], [103.97, 33.03]]]]}, "2013-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.97, 33.03], [104.32, 33.18], [104.47, 33.53], [104.82, 33.68], [104.85, 33.75], [104.75, 34.0], [104.85, 34.25], [104.82, 34.32], [104.47, 34.47], [104.25, 35.0], [104.47, 35.53], [104.82, 35.68], [104.97, 36.03], [105.5, 36.25], [106.03, 36.03], [106.18, 35.68], [106.53, 35.53], [106.75, 35.0], [106.65, 34.75], [106.68, 34.68], [107.03, 34.53], [107.25, 34.0], [107.04, 33.5], [107.25, 33.0], [107.03, 32.47], [106.68, 32.32], [106.53, 31.97], [106.0, 31.75], [105.75, 31.85], [105.68, 31.82], [105.53, 31.47], [105.0, 31.25], [104.75, 31.35], [104.5, 31.25], [103.97, 31.47], [103.75, 32.0], [103.85, 32.25], [103.75, 32.5], [103.97, 33.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.715380081883609}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.2884735781553545}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.316272998496856, 11.671124595926244, 11.166770446627424, 10.773680723140046, 11.623788716202796, 12.332194335016538, 12.818750358820864, 12.991085337085678, 13.652499974940724]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.741834192421209, 14.500263387240466, 14.755723746340493, 14.258922795660567, 15.775416522465378, 17.593797017879012, 17.699465060678847, 16.687062381914814, 17.795617607976]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.845922283345885, 4.626645033016806, 4.798112580589338, 5.159578009391362, 5.386266917098018, 5.4742382201630795, 5.2255242120539185, 5.275128529184888, 5.812690618183318]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.154362962166488, 5.276967582214979, 5.750516613674392, 6.4218183703053455, 6.457737081169796, 6.694970143177443, 6.306353172603281, 5.96619605595356, 6.715380081883609]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4760794465966052, 1.3631783427067048, 1.339630597787988, 1.4168200883234205, 1.5147026397240035, 1.5692449996899738, 1.5550444457140227, 1.6487126528168798, 1.895362073748635]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.60583399108078, 1.4551805966508613, 1.4527991140113974, 1.7252657350277414, 1.8092583483830744, 1.9541275883098304, 1.8820046491414855, 1.8531827943241084, 2.199874630549429]}}