{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:10:22.484748", "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": "2026-Feb-01_to_2026-Feb-03_298.0_-37.0"}, "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": 2026020000791}, "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": "February 01 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 03 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 56725.896659400605}, "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": ["Argentina"]}, "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": []}, "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": -37.0}, "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": 298.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "298.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 296.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 298.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -38.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -35.75}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-64.25, -37.0], [-64.15, -36.75], [-64.25, -36.5], [-64.15, -36.25], [-64.25, -36.0], [-64.03, -35.47], [-63.5, -35.25], [-63.25, -35.35], [-63.0, -35.25], [-62.75, -35.35], [-62.5, -35.25], [-62.25, -35.35], [-62.0, -35.25], [-61.47, -35.47], [-61.25, -36.0], [-61.35, -36.25], [-61.32, -36.32], [-60.97, -36.47], [-60.75, -37.0], [-60.85, -37.25], [-60.75, -37.5], [-60.85, -37.75], [-60.75, -38.0], [-60.97, -38.53], [-61.5, -38.75], [-61.75, -38.65], [-62.0, -38.75], [-62.25, -38.65], [-62.5, -38.75], [-62.75, -38.65], [-63.0, -38.75], [-63.25, -38.65], [-63.5, -38.75], [-64.03, -38.53], [-64.25, -38.0], [-64.15, -37.75], [-64.25, -37.5], [-64.15, -37.25], [-64.25, -37.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-02-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, -37.5], [-64.14999999999998, -37.25], [-64.25, -37.0], [-64.14999999999998, -36.75], [-64.25, -36.5], [-64.14999999999998, -36.25], [-64.25, -36.0], [-64.02999999999997, -35.47], [-63.5, -35.25], [-63.25, -35.35], [-63.0, -35.25], [-62.75, -35.35], [-62.5, -35.25], [-62.25, -35.35], [-62.0, -35.25], [-61.47000000000003, -35.47], [-61.25, -36.0], [-61.35000000000002, -36.25], [-61.31999999999999, -36.32], [-60.97000000000003, -36.47], [-60.75, -37.0], [-60.85000000000002, -37.25], [-60.75, -37.5], [-60.85000000000002, -37.75], [-60.75, -38.0], [-60.97000000000003, -38.53], [-61.5, -38.75], [-61.75, -38.65], [-62.0, -38.75], [-62.25, -38.65], [-62.5, -38.75], [-62.75, -38.65], [-63.0, -38.75], [-63.25, -38.65], [-63.5, -38.75], [-64.02999999999997, -38.53], [-64.25, -38.0], [-64.14999999999998, -37.75], [-64.25, -37.5]]]]}, "2026-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, -37.5], [-64.14999999999998, -37.25], [-64.25, -37.0], [-64.14999999999998, -36.75], [-64.25, -36.5], [-64.14999999999998, -36.25], [-64.25, -36.0], [-64.02999999999997, -35.47], [-63.5, -35.25], [-63.25, -35.35], [-63.0, -35.25], [-62.75, -35.35], [-62.5, -35.25], [-62.25, -35.35], [-62.0, -35.25], [-61.47000000000003, -35.47], [-61.25, -36.0], [-61.35000000000002, -36.25], [-61.31999999999999, -36.32], [-60.97000000000003, -36.47], [-60.75, -37.0], [-60.85000000000002, -37.25], [-60.75, -37.5], [-60.85000000000002, -37.75], [-60.75, -38.0], [-60.97000000000003, -38.53], [-61.5, -38.75], [-61.75, -38.65], [-62.0, -38.75], [-62.25, -38.65], [-62.5, -38.75], [-62.75, -38.65], [-63.0, -38.75], [-63.25, -38.65], [-63.5, -38.75], [-64.02999999999997, -38.53], [-64.25, -38.0], [-64.14999999999998, -37.75], [-64.25, -37.5]]]]}, "2026-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, -37.5], [-64.14999999999998, -37.25], [-64.25, -37.0], [-64.14999999999998, -36.75], [-64.25, -36.5], [-64.14999999999998, -36.25], [-64.25, -36.0], [-64.02999999999997, -35.47], [-63.5, -35.25], [-63.25, -35.35], [-63.0, -35.25], [-62.75, -35.35], [-62.5, -35.25], [-62.25, -35.35], [-62.0, -35.25], [-61.47000000000003, -35.47], [-61.25, -36.0], [-61.35000000000002, -36.25], [-61.31999999999999, -36.32], [-60.97000000000003, -36.47], [-60.75, -37.0], [-60.85000000000002, -37.25], [-60.75, -37.5], [-60.85000000000002, -37.75], [-60.75, -38.0], [-60.97000000000003, -38.53], [-61.5, -38.75], [-61.75, -38.65], [-62.0, -38.75], [-62.25, -38.65], [-62.5, -38.75], [-62.75, -38.65], [-63.0, -38.75], [-63.25, -38.65], [-63.5, -38.75], [-64.02999999999997, -38.53], [-64.25, -38.0], [-64.14999999999998, -37.75], [-64.25, -37.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.805021081274788}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.143417752592492}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.708156729435586, 28.080851104294027, 26.110705146236683]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.56531677246096, 28.91448872884115, 26.940390523274743]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.691500835575806, 6.271306498749737, 4.467445923451934]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.236933490293723, 6.805021081274788, 5.157590511771673]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5286584651600652, 2.006026578583432, 1.3932985352345766]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.673378953444934, 2.1762221245285485, 1.6315572969001806]}}