{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:22:38.056870", "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": "2022-Aug-21_to_2022-Aug-27_249.5_20.0"}, "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": 2022080002635}, "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 21 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 27 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 63889.49081942057}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": ["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": 20.0}, "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": 249.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "249.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 245.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 250.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-111.5, 20.25], [-111.25, 20.15], [-111.18, 20.18], [-111.03, 20.53], [-110.5, 20.75], [-110.25, 20.65], [-110.0, 20.75], [-109.47, 20.53], [-109.25, 20.0], [-109.47, 19.47], [-110.0, 19.25], [-110.25, 19.35], [-110.32, 19.32], [-110.47, 18.97], [-110.82, 18.82], [-110.97, 18.47], [-111.5, 18.25], [-111.75, 18.35], [-112.0, 18.25], [-112.25, 18.35], [-112.5, 18.25], [-113.03, 18.47], [-113.18, 18.82], [-113.53, 18.97], [-113.68, 19.32], [-114.03, 19.47], [-114.18, 19.82], [-114.25, 19.85], [-114.32, 19.82], [-114.47, 19.47], [-115.0, 19.25], [-115.53, 19.47], [-115.75, 20.0], [-115.65, 20.25], [-115.75, 20.5], [-115.53, 21.03], [-115.0, 21.25], [-114.75, 21.15], [-114.68, 21.18], [-114.53, 21.53], [-114.0, 21.75], [-113.75, 21.65], [-113.5, 21.75], [-113.25, 21.65], [-113.0, 21.75], [-112.47, 21.53], [-112.32, 21.18], [-111.97, 21.03], [-111.75, 20.5], [-111.87, 20.2], [-111.75, 20.15], [-111.5, 20.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Pacific-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-110.5, 19.25], [-111.03, 19.47], [-111.25, 20.0], [-111.03, 20.53], [-110.5, 20.75], [-110.25, 20.65], [-110.0, 20.75], [-109.47, 20.53], [-109.25, 20.0], [-109.47, 19.47], [-110.0, 19.25], [-110.25, 19.35], [-110.5, 19.25]]]]}, "2022-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-111.03, 20.53], [-110.5, 20.75], [-110.25, 20.65], [-110.0, 20.75], [-109.47, 20.53], [-109.25, 20.0], [-109.47, 19.47], [-110.0, 19.25], [-110.25, 19.35], [-110.32, 19.32], [-110.47, 18.97], [-111.0, 18.75], [-111.53, 18.97], [-111.75, 19.5], [-111.53, 20.03], [-111.18, 20.18], [-111.03, 20.53]]]]}, "2022-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-112.5, 18.75], [-113.03, 18.97], [-113.25, 19.5], [-113.03, 20.03], [-112.5, 20.25], [-112.25, 20.15], [-112.0, 20.25], [-111.75, 20.15], [-111.5, 20.25], [-111.25, 20.15], [-111.18, 20.18], [-111.03, 20.53], [-110.5, 20.75], [-110.25, 20.65], [-110.0, 20.75], [-109.47, 20.53], [-109.25, 20.0], [-109.47, 19.47], [-110.0, 19.25], [-110.25, 19.35], [-110.32, 19.32], [-110.47, 18.97], [-110.82, 18.82], [-110.97, 18.47], [-111.5, 18.25], [-112.03, 18.47], [-112.18, 18.82], [-112.25, 18.85], [-112.5, 18.75]]]]}, "2022-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-115.75, 20.5], [-115.53, 21.03], [-115.0, 21.25], [-114.75, 21.15], [-114.68, 21.18], [-114.53, 21.53], [-114.0, 21.75], [-113.75, 21.65], [-113.5, 21.75], [-113.25, 21.65], [-113.0, 21.75], [-112.47, 21.53], [-112.32, 21.18], [-111.97, 21.03], [-111.75, 20.5], [-111.87, 20.2], [-111.75, 20.15], [-111.5, 20.25], [-111.25, 20.15], [-111.0, 20.25], [-110.47, 20.03], [-110.25, 19.5], [-110.47, 18.97], [-110.82, 18.82], [-110.97, 18.47], [-111.5, 18.25], [-111.75, 18.35], [-112.0, 18.25], [-112.25, 18.35], [-112.5, 18.25], [-113.03, 18.47], [-113.18, 18.82], [-113.53, 18.97], [-113.68, 19.32], [-114.03, 19.47], [-114.18, 19.82], [-114.25, 19.85], [-114.32, 19.82], [-114.47, 19.47], [-115.0, 19.25], [-115.53, 19.47], [-115.75, 20.0], [-115.65, 20.25], [-115.75, 20.5]]]]}, "2022-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-115.75, 20.5], [-115.53, 21.03], [-115.0, 21.25], [-114.75, 21.15], [-114.68, 21.18], [-114.53, 21.53], [-114.0, 21.75], [-113.75, 21.65], [-113.5, 21.75], [-113.25, 21.65], [-113.0, 21.75], [-112.47, 21.53], [-112.32, 21.18], [-111.97, 21.03], [-111.75, 20.5], [-111.87, 20.2], [-111.75, 20.15], [-111.5, 20.25], [-111.25, 20.15], [-111.18, 20.18], [-111.03, 20.53], [-110.5, 20.75], [-110.25, 20.65], [-110.0, 20.75], [-109.47, 20.53], [-109.25, 20.0], [-109.47, 19.47], [-110.0, 19.25], [-110.25, 19.35], [-110.32, 19.32], [-110.47, 18.97], [-110.82, 18.82], [-110.97, 18.47], [-111.5, 18.25], [-111.75, 18.35], [-112.0, 18.25], [-112.25, 18.35], [-112.5, 18.25], [-113.03, 18.47], [-113.18, 18.82], [-113.53, 18.97], 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"description": "Mean t2m anomaly over entire duration", "value": 1.3807948048851457}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.221271444731713, 28.634974730471583, 28.234342161309257, 27.794913852864738, 28.054207282848438, 28.015324177780656, 27.99853061264008]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.30099566035318, 28.807056597628105, 28.583494870471668, 28.278789753174806, 28.684590184731007, 28.699032372482293, 28.55369220557435]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.9991020495406246, 1.4498638666128727, 1.1854719989600946, 1.316003748380578, 1.491055551468507, 1.496064422433608, 1.1288165250967097]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.0027356727377423, 1.634111285147867, 1.4039833122250798, 1.5407949004238617, 2.0447087383029157, 1.8390280335378861, 1.2103353061847315]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2159308895950693, 1.7407467115517339, 1.3951722826902293, 1.4683316219320501, 1.6560058873200847, 1.65812475476621, 1.3217157292094817]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2237702705106568, 1.97061062366125, 1.6687926582057524, 1.6978817872935141, 2.1225557523446437, 2.1128667744213065, 1.4472599640037012]}}