===== 1 Variantas ===== [[https://www.visualcrossing.com/weather-api|Visual Crossing Weather-API]] === Visi gaunami duomenys: === * Location * Wind Direction * Sunrise * Latitude * Cloud Cover (%) * Minimum Temperature (degC) * Date time * Precipitation (mm) * Solar Radiation (W/m^2) * Dew Point (degC) * Relative Humidity (%) * ID * Precipitation Cover (%) * Longitude * Info * Temperature (degC) * Address * Maximum Temperature (degC) * Visibility (km) * Wind Speed (kph) * Solar Energy (J/m^2) * Weather Type * Moon Phase * Sea Level Pressure (mb) * Snow (cm) * Sunset * Name * Wind Gust (kph) * Conditions * Wind Chill (degC) === Šiuo atveju svarbiausi duomenys: === * Vieta (Location) * Vėjo kryptis (Wind Direction) [[http://snowfence.umn.edu/Components/winddirectionanddegrees.htm|0 - 360]] * Saulėtekis (Sunrise) * Debesuotumas (Cloud Cover) (%) * Duomenų gavimo laikas ir data (Date time) * Krituliai (Precipitation) (mm) * **Radiacija į kvadratinį metrą (Solar Radiation) (W/m^2)** * Drėgnumas (Relative Humidity) (%) * Temperatūra (Temperature) (degC) * Matomumas (Visibility) (km) * Vėjo greitis (Wind Speed)(kph) * Saulės energija (Solar Energy) (J/m^2) * Sniego gylis (Snow Depth) (cm) * Saulėlydis (Sunset) * Oro sąlygos (Conditions) * Vėjo šaltis (Wind Chill - the cooling effect of wind blowing on a surface) (degC) === Gaunamų duomenų pavyzdys: === | Location | Wind Direction | Sunrise | Latitude | Cloud Cover (%) | Minimum Temperature (degC) | Date time | Precipitation (mm) | Solar Radiation (W/m^2) | Dew Point (degC) | Relative Humidity (%) | ID | Precipitation Cover (%) | Longitude | Info | Temperature (degC) | Address | Maximum Temperature (degC) | Visibility (km) | Wind Speed (kph) | Solar Energy (J/m^2) | Resolved Address | Heat Index (degC) | Weather Type | Moon Phase | Snow Depth (cm) | Sea Level Pressure (mb) | Snow (cm) | Sunset | Name | Wind Gust (kph) | Conditions | Wind Chill (degC) | | Dubingiai, Utenos Apskritis, Lietuva | 228 | 2021-04-01T06:49:37+03:00 | 55.0583 | 28.2 | 3 | 04/01/2021 08:00:00 | 0 | 63 | 1.4 | 89.38 | | | 25.4578 | | 3 | Dubingiai, Utenos Apskritis, Lietuva | 3 | 16 | 2.7 | 0.1 | | | | 0.59 | 0 | 1012.8 | 0 | 2021-04-01T19:55:34+03:00 | Dubingiai, Utenos Apskritis, Lietuva | 6.2 | Partially cloudy | | | Dubingiai, Utenos Apskritis, Lietuva | 279 | 2021-04-01T06:49:37+03:00 | 55.0583 | 89 | 2.4 | 04/01/2021 08:15:00 | 0 | 83 | 0.1 | 84.79 | | | 25.4578 | | 2.4 | Dubingiai, Utenos Apskritis, Lietuva | 2.4 | 10 | 2.1 | 0.1 | | | | 0.59 | 0 | | 0 | 2021-04-01T19:55:34+03:00 | Dubingiai, Utenos Apskritis, Lietuva | 1.4 | Overcast | | | Dubingiai, Utenos Apskritis, Lietuva | 246 | 2021-04-01T06:49:37+03:00 | 55.0583 | | 3 | 04/01/2021 08:30:00 | 0 | 155 | 0.8 | 85.95 | | | 25.4578 | | 3 | Dubingiai, Utenos Apskritis, Lietuva | 3 | | 3.1 | 0.1 | | | | 0.59 | 0 | | 0 | 2021-04-01T19:55:34+03:00 | Dubingiai, Utenos Apskritis, Lietuva | 0 | Clear | | | Dubingiai, Utenos Apskritis, Lietuva | 236 | 2021-04-01T06:49:37+03:00 | 55.0583 | 88 | 3.2 | 04/01/2021 08:45:00 | 0 | 135 | 1.2 | 86.34 | | | 25.4578 | | 3.2 | Dubingiai, Utenos Apskritis, Lietuva | 3.2 | 10 | 3.1 | 0.1 | | | | 0.59 | 0 | | 0 | 2021-04-01T19:55:34+03:00 | Dubingiai, Utenos Apskritis, Lietuva | 3.2 | Overcast | | === Esminiai dalykai: === Galima gauti duomenis 5 minučių tikslumu, tačiau greičiausiai prasminga duomenis būtų rinkti kas 15 minučių, kadangi saulės radiacija į kvadratinį metrą atnaujinama kas 15 minučių. Su šiuo API **vienos** vietos duomenys nuo 2020 m. Sausio 1 d. iki 2021 m. Balandžio 20 d. kainuotų apie 4.60$. ===== 2 variantas ===== [[https://toolkit.solcast.com.au/|Solcast API Toolkit]] === Gaunami duomenys: === * Global Horizontal Irradiance (GHI): The total irradiance received on a horizontal surface. It is the sum of the horizontal components of direct (beam) and diffuse irradiance. Units in W/m2. * Direct (Beam) Horizontal Irradiance (EBH): The horizontal component of Direct Normal Irradiance. Units in W/m2. * Direct Normal Irradiance (DNI): Solar irradiance arriving in a direct line from the sun as measured on a surface held perpendicular to the sun. Units in W/m2. * Diffuse Horizontal Irradiance (DHI): The horizontal component of diffuse irradiance (irradiance that is scattered by the atmosphere). Units in W/m2. * Zenith: The angle between a line perpendicular to the earth's surface and the sun (90 deg = sunrise and sunset; 0 deg = sun directly overhead). Units in degrees. * Azimuth: The angle between a line pointing due north to the sun's current position in the sky. Negative to the East. Positive to the West. 0 at due North. Units in degrees. * Cloud Opacity: The measurement of how opaque the clouds are to solar radiation in the given location (0 = no cloud, 100 = full attenuation of incoming light). Units in percentage. * Air temp: The air temperature (2 meters above ground level). Units in Celsius. * Dewpoint: The air dewpoint temperature (2 meters above ground level). Units in Celsius. * Relative humidity: The air relative humidity (2 meters above ground level). Units in percentage. * Sfc pressure: The air pressure at ground level. Units in hPa. * Wind speed: The wind speed (10 meters above ground level). Units in m/s. * Wind direction: The wind direction (10 meters above ground level). This is the meteorological convention. 0 is a northerly (from the north); 90 is an easterly (from the east); 180 is a southerly (from the south); 270 is a westerly (from the west). Units in degrees. * Precip water: The total column preciptable water content. Units in kg/m2. * Snow depth: The snow depth liquid-water-equivalent. Units in cm. * GTI (Global Tilted Irradiance) Horizontal Single-Axis Tracker: The total irradiance received on a sun-tracking surface. Units in W/m2. * GTI (Global Tilted Irradiance) fixed: The total irradiance received on a surface with a fixed tilt. The tilt is set to latitude of the location. Units in W/m2. * Albedo: Average daytime surface reflectivity of visible light, expressed as a value between 0 and 1. 0 represents complete absorption. 1 represents complete reflection. === Esminiai dalykai: === Žymiai daugiau specifinių duomenų, tačiau kaina už vienerių metų istorinius duomenis vienai lokacijai: 200$ (60 minučių tikslumu) arba 300$ (5 minučių tikslumu). Svarbu paminėti, galima saulės radiacijos į kvadratinį metrą prognozė ir pagaminamos energijos prognozė (30 min. tikslumu). {{:solcastsc.png?400 |}} ===== 3 variantas ===== [[https://data.nasa.gov/Earth-Science/Prediction-Of-Worldwide-Energy-Resources-POWER-/wn3p-qsan|NASA Open Data Portal]] Nemokami NASA duomenys, galintys grąžinti šiuos parametrus, dienos tikslumu: {{::nasasc.png?400 |}} [[https://power.larc.nasa.gov/downloads/POWER_SinglePoint_Daily_20200101_20210420_055d60N_025d46E_a770957d.txt|Duomenų pavyzdys]] === Galimai naudingi duomenys: === - [[https://re.jrc.ec.europa.eu/pvg_tools/en/tools.html|PHOTOVOLTAIC GEOGRAPHICAL INFORMATION SYSTEM]] - Europos komisijos nemokami istoriniai duomenys, tačiau laikotarpis yra: 2005 - 2016 metai. - [[http://www.solarelectricityhandbook.com/solar-irradiance.html|Solar Electricity Handbook]] - kWh/m2 didžiųjų Lietuvos miestų mėnesio vidurkis.