{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:44.749774", "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": "2018-Dec-06_to_2018-Dec-09_254.5_18.0"}, "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": 2018120001583}, "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 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 09 2018"}, "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": 58657.28566236763}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": ["North Pacific Ocean"]}, "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": 18.0}, "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": 254.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "254.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 253.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 256.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-12-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.65, 18.75], [-106.75, 19.0], [-106.65, 19.25], [-106.75, 19.5], [-106.53, 20.03], [-106.0, 20.25], [-105.75, 20.15], [-105.5, 20.25], [-104.97, 20.03], [-104.82, 19.68], [-104.75, 19.65], [-104.5, 19.75], [-104.25, 19.65], [-104.0, 19.75], [-103.47, 19.53], [-103.25, 19.0], [-103.46, 18.5], [-103.25, 18.0], [-103.35, 17.75], [-103.25, 17.5], [-103.47, 16.97], [-104.0, 16.75], [-104.25, 16.85], [-104.5, 16.75], [-104.75, 16.85], [-105.0, 16.75], [-105.25, 16.85], [-105.5, 16.75], [-106.03, 16.97], [-106.18, 17.32], [-106.53, 17.47], [-106.75, 18.0], [-106.65, 18.25], [-106.75, 18.5], [-106.65, 18.75]]]]}, "2018-12-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.65, 18.75], [-106.75, 19.0], [-106.65, 19.25], [-106.75, 19.5], [-106.53, 20.03], [-106.0, 20.25], [-105.75, 20.15], [-105.5, 20.25], [-104.97, 20.03], [-104.82, 19.68], [-104.75, 19.65], [-104.5, 19.75], [-104.25, 19.65], [-104.0, 19.75], [-103.47, 19.53], [-103.25, 19.0], [-103.46, 18.5], [-103.25, 18.0], [-103.35, 17.75], [-103.25, 17.5], [-103.47, 16.97], [-104.0, 16.75], [-104.25, 16.85], [-104.5, 16.75], [-104.75, 16.85], [-105.0, 16.75], [-105.25, 16.85], [-105.5, 16.75], [-106.03, 16.97], [-106.18, 17.32], [-106.53, 17.47], [-106.75, 18.0], [-106.65, 18.25], [-106.75, 18.5], [-106.65, 18.75]]]]}, "2018-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.65, 18.75], [-106.75, 19.0], [-106.65, 19.25], [-106.75, 19.5], [-106.53, 20.03], [-106.0, 20.25], [-105.75, 20.15], [-105.5, 20.25], [-104.97, 20.03], [-104.82, 19.68], [-104.75, 19.65], [-104.5, 19.75], [-104.25, 19.65], [-104.0, 19.75], [-103.47, 19.53], [-103.25, 19.0], [-103.46, 18.5], [-103.25, 18.0], [-103.35, 17.75], [-103.25, 17.5], [-103.47, 16.97], [-104.0, 16.75], [-104.25, 16.85], [-104.5, 16.75], [-104.75, 16.85], [-105.0, 16.75], [-105.25, 16.85], [-105.5, 16.75], [-106.03, 16.97], [-106.18, 17.32], [-106.53, 17.47], [-106.75, 18.0], [-106.65, 18.25], [-106.75, 18.5], [-106.65, 18.75]]]]}, "2018-12-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-105.5, 18.75], [-104.97, 18.53], [-104.75, 18.0], [-104.97, 17.47], [-105.5, 17.25], [-106.03, 17.47], [-106.25, 18.0], [-106.03, 18.53], [-105.5, 18.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.7450224146814435}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4084495129838501}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.585633423220997, 27.73721792507962, 27.63779182579316, 27.36088341413216]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.011562908687722, 28.16701137619617, 28.021761861421737, 27.36088341413216]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3134965100236997, 1.4928383746588707, 1.4294337839614257, 1.2000469191349339]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6028364616817043, 1.7450224146814435, 1.7014680345753845, 1.2000469191349339]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4254989437465384, 1.6099605305428295, 1.519858524470378, 1.249302635522189]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6880267465754974, 1.862109092680043, 1.7918487242435834, 1.249302635522189]}}