Show HN: Probably the most comprehensive weather API currently available This was posted before but I'm quite pleased to share a major update for https://oikolab.com. We now have available seven decades of hourly weather data starting from 1950 for any location in the world, thanks to the recent publication of ERA5 reanalysis data from European Centre for Medium-Range Weather Forecasts (ECMWF). ERA5 is gap-free, gridded dataset generated using data assimilation method (https://ift.tt/2sZYnWj), similar to NWP models but with the benefit of hindsight. As far as we're aware of, we're the first weather data service provider to have this extensive range of coverage accessible via REST API, where one can quickly query time-series of weather parameters for any location in seconds rather than hours or days from the original source. Here are some stats: Coverage: Global, from 1950 to 10 days ahead Spatial Resolution: 0.25 deg x 0.25 deg (lat x lon) Temporal Resolution: Hourly Weather Parameters: ~30, including longwave/shortwave radiation, wetbulb temperature, windspeed at 100m, etc. (https://ift.tt/37bc4YZ) NetCDF/GRIB Data Size: ~100TB Data Sources: Historical (ERA5) - https://ift.tt/3oGvGKD Forecast (GFS) - https://ift.tt/1eg5Bxm Any feedback or comments would be much appreciated. Thanks! December 12, 2020 at 11:09AM
Show HN: StreetComplete, an OpenStreetMap Editor for Humans StreetComplete is an OpenStreetMap[0] editor directed at people who want to contribute and want to do this using their smartphone, without learning how to edit things[1]. It is available as an Android application. It is intended to be used as one walks, with quests appearing as markers on the map. Selecting a marker allows one to answer a simple question. The answer will be added to the OpenStreetMap database, with app handling selecting objects for editing, transforming answer into OSM tags and making edits. OpenStreetMap account is needed to apply edits, but it is possible to start without it, make some edits and login/register later. Note: I am not the main author, but I am one of the active contributors. Github page is at https://ift.tt/2g8lasH and https://ift.tt/3nR9PzS shows what was recently released. [0]OpenStreetMap is a Wikipedia of maps, available on the open licence. This dataset is already used for many interestin...
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