Meteorological data is very commonly used data in various researches. We have previously shared daily weather data specific to weather stations around the world from 1929 to 2022, including average temperature, maximum temperature, and minimum temperature (all can be viewed through See previous article for details)
This time we bring the daily average wind speed data specific to weather stations around the world from 1929 to 2022! The data comes from the National Center for Environmental Information (NCEI) under the National Oceanic and Atmospheric Administration (NOAA).
The daily average wind speed raw data downloaded from NECI official website is in knots, and the data format is csv. For the convenience of everyone, we have processed the original data, the unit is converted to km/h (km/h), the format is converted to shp format, and the data coordinate system is GCS_WGS_1984. Taking 2022 as an example, there are 12319 meteorological observation stations in the world , the specific data processing method will be introduced in detail below!
The following is a detailed introduction to the data:
01Data preview
Since it is the daily average wind speed data, and there are 94 years, the number of data items is very large, and it is difficult to save all the years in a shp file. We save the data of each year as a shp file, there are 94 years in total, that is, there are 94 shp files! Each file contains the daily average temperature for all weather observation stations around the world for that year. Let's take the daily average temperature data of meteorological observation stations in 2022 as an example to preview:
The data fields include the number of the meteorological observation station (STATION) , the name of the meteorological observation station (NAME), latitude (LATITUDE) and longitude (LONGITUDE) , and daily average wind speed data (for example, 2022-01-01) .
02Data source
Data from the National Center for Environmental Information (NCEI) under the National Oceanic and Atmospheric Administration (NOAA), available at: https://www.ncei.noaa.gov/data/global-summary-of-the-day /archive/, including the meteorological data from 1929 to 2022, you can go to this website to download the original data yourself!
03Data Processing Instructions
1. Consolidation processing: the original csv data downloaded from the NCEI website, each csv is all the temperature of a specific site within a year, recorded by day, but not all 365 days, some more than 300 days, some only Ten days. We merged the daily average temperature data of all meteorological observation stations involved in each year according to the year, and finally got 94 year-named shp files.
2. Unit conversion: the original data unit is knots (kts = knots per hour, nautical miles per hour), according to the formula 1 knots = 1852 meters per hour = 1.852 kilometers per hour, convert knots to kilometers per hour
3. Null value processing: Null values in the original csv data are filled with floating point numbers such as 9999.9 or 999.9. During processing, we filter out these floating point numbers, and the processed Shp corresponds to the null value.
4. Description of the number of stations: The number of stations varies from year to year. Basically, the newer the year, the more global weather stations there are. There are 12,319 in 2022, and there are fewer weather stations in earlier years.
At the bottom of the article is our official account business card. We will regularly introduce various types of city data and data visualization and analysis technologies. For more details about the daily average wind speed data of weather stations around the world from 1929 to 2022, welcome everyone to pay more attention to us . understand~