NASA POWER
NASA POWER (Prediction Of Worldwide Energy Resources) is a project at NASA's Langley Research Center that publishes gridded weather and solar data built from satellite observations and reanalysis models. Through ScholarMuse an agent can request a daily or monthly series for one latitude and longitude and get back a table of values with units and a count of missing periods.
ScholarMuse tools: get_weather_history. Each successful call uses credits.
Ask your agent
What your agent gets back
Every record carries id, source, title, url, license, attribution and retrievedAt. The fields below are the data that comes from NASA POWER.
get_weather_history
One record per call. Each row in observations holds the date plus one value per requested variable (temperature_max, temperature_min, temperature_mean, precipitation, relative_humidity, wind_speed, solar_radiation).
- location
- Latitude, longitude and grid-cell elevation in metres (gridElevationM)
- aggregate
- daily or monthly
- units
- Unit of each variable as reported by POWER
- powerParameters
- POWER parameter code behind each variable, e.g. T2M_MAX
- observations
- Rows of date and values; missing values are null
- count
- Number of rows returned
- periodsWithMissingValues
- Rows where at least one variable is missing
- note
- How monthly values were calculated
- apiVersion
- POWER API version that answered
What it covers
- Any point on Earth by latitude and longitude, from 1981-01-01 up to today.
- Seven variables: maximum, minimum and mean temperature, precipitation, relative humidity, wind speed and solar radiation.
- Daily values, or monthly means for longer periods.
Limits
- Start dates before 1981-01-01 and end dates in the future are rejected.
- Daily data is limited to 2,000 days per call; longer ranges must use monthly means.
- The values are gridded model and satellite estimates, not weather-station readings.
- One point per call, and a request can take up to 40 seconds before it times out.
How ScholarMuse reaches NASA POWER
The connector calls the NASA POWER temporal API (daily or monthly point endpoint) at power.larc.nasa.gov with the Agroclimatology (AG) community setting. No API key is sent.
Responses are cached for up to 3 days, so the most recent days of a series can lag NASA POWER by that long.
API key: the upstream API can be called without one, so you do not add one.
Licence and attribution
Licence: Open data (NASA Earth Science data policy); acknowledgement requested
The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division.
Records that come from NASA POWER carry this licence and attribution. When you cite the data in a paper, follow NASA POWER's own citation guidance.
