{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:00:15.388270", "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": "2024-Jul-18_to_2024-Jul-21_252.5_29.5"}, "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": 2024070002142}, "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": "July 18 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 21 2024"}, "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": 50655.00316255052}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "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": 29.5}, "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": 250.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 253.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 29.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 31.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-105.75, 29.5], [-105.97, 28.97], [-106.5, 28.75], [-106.75, 28.85], [-107.0, 28.75], [-107.25, 28.85], [-107.5, 28.75], [-107.75, 28.85], [-108.0, 28.75], [-108.53, 28.97], [-108.68, 29.32], [-108.75, 29.35], [-109.0, 29.25], [-109.53, 29.47], [-109.68, 29.82], [-110.03, 29.97], [-110.25, 30.5], [-110.15, 30.75], [-110.18, 30.82], [-110.53, 30.97], [-110.75, 31.5], [-110.53, 32.03], [-110.0, 32.25], [-109.75, 32.15], [-109.5, 32.25], [-109.25, 32.15], [-109.0, 32.25], [-108.47, 32.03], [-108.32, 31.68], [-107.97, 31.53], [-107.82, 31.18], [-107.47, 31.03], [-107.32, 30.68], [-107.25, 30.65], [-107.0, 30.75], [-106.47, 30.53], [-106.32, 30.18], [-105.97, 30.03], [-105.75, 29.5]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Central-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-07-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-110.53, 30.97], [-110.75, 31.5], [-110.53, 32.03], [-110.0, 32.25], [-109.75, 32.15], [-109.5, 32.25], [-109.25, 32.15], [-109.0, 32.25], [-108.47, 32.03], [-108.32, 31.68], [-107.97, 31.53], [-107.82, 31.18], [-107.47, 31.03], [-107.32, 30.68], [-107.25, 30.65], [-107.0, 30.75], [-106.47, 30.53], [-106.25, 30.0], [-106.35, 29.75], [-106.25, 29.5], [-106.47, 28.97], [-107.0, 28.75], [-107.25, 28.85], [-107.5, 28.75], [-107.75, 28.85], [-108.0, 28.75], [-108.53, 28.97], [-108.68, 29.32], [-108.75, 29.35], [-109.0, 29.25], [-109.53, 29.47], [-109.68, 29.82], [-110.03, 29.97], [-110.25, 30.5], [-110.15, 30.75], [-110.18, 30.82], [-110.53, 30.97]]]]}, "2024-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-110.53, 30.97], [-110.75, 31.5], [-110.53, 32.03], [-110.0, 32.25], [-109.75, 32.15], [-109.5, 32.25], [-109.25, 32.15], [-109.0, 32.25], [-108.47, 32.03], [-108.32, 31.68], [-107.97, 31.53], [-107.82, 31.18], [-107.47, 31.03], [-107.32, 30.68], [-107.25, 30.65], [-107.0, 30.75], [-106.47, 30.53], [-106.32, 30.18], [-105.97, 30.03], [-105.75, 29.5], [-105.97, 28.97], [-106.5, 28.75], [-106.75, 28.85], [-107.0, 28.75], [-107.25, 28.85], [-107.5, 28.75], [-107.75, 28.85], [-108.0, 28.75], [-108.53, 28.97], [-108.68, 29.32], [-108.75, 29.35], [-109.0, 29.25], [-109.53, 29.47], [-109.68, 29.82], [-110.03, 29.97], [-110.25, 30.5], [-110.15, 30.75], [-110.18, 30.82], [-110.53, 30.97]]]]}, "2024-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-110.53, 30.97], [-110.75, 31.5], [-110.53, 32.03], [-110.0, 32.25], [-109.75, 32.15], [-109.5, 32.25], [-109.25, 32.15], [-109.0, 32.25], [-108.47, 32.03], [-108.32, 31.68], [-107.97, 31.53], [-107.82, 31.18], [-107.47, 31.03], [-107.32, 30.68], [-107.25, 30.65], [-107.0, 30.75], [-106.47, 30.53], [-106.32, 30.18], [-105.97, 30.03], [-105.75, 29.5], [-105.97, 28.97], [-106.5, 28.75], [-106.75, 28.85], [-107.0, 28.75], [-107.25, 28.85], [-107.5, 28.75], [-107.75, 28.85], [-108.0, 28.75], [-108.53, 28.97], [-108.68, 29.32], [-108.75, 29.35], [-109.0, 29.25], [-109.53, 29.47], [-109.68, 29.82], [-110.03, 29.97], [-110.25, 30.5], [-110.15, 30.75], [-110.18, 30.82], [-110.53, 30.97]]]]}, "2024-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.5, 28.75], [-108.03, 28.97], [-108.25, 29.5], [-108.03, 30.03], [-107.5, 30.25], [-107.25, 30.15], [-107.0, 30.25], [-106.75, 30.15], [-106.5, 30.25], [-105.97, 30.03], [-105.75, 29.5], [-105.97, 28.97], [-106.5, 28.75], [-106.75, 28.85], [-107.0, 28.75], [-107.25, 28.85], [-107.5, 28.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.6803917448391985}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.4378395463090428}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.508255020728825, 26.70549958192305, 26.678236768165334, 24.480127082927595]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.51814012713595, 30.21409896973529, 30.105807931818788, 26.492621989487816]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.9086223879228674, 3.232061255830977, 3.224066198478017, 3.2703028725836703]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.6803917448391985, 3.75403054177292, 3.821391133855343, 3.606811572702327]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8399179142200461, 1.5853490173277986, 1.5927454629424276, 1.5906385982464701]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.302952208259417, 2.209744495921187, 1.8825816656899188, 1.6494154808773034]}}