sounding_wyoming: Sounding data

In climate: Interface to Download Meteorological (and Hydrological) Datasets

Sounding data

Description

Downloading the measurements of the vertical profile of atmosphere (also known as sounding data). Data can be retrieved using TEMP and BUFR sounding formatting.

Usage

sounding_wyoming(wmo_id, yy, mm, dd, hh, min = 0, bufr = FALSE)

Arguments

wmo_id	international WMO station code (World Meteorological Organization ID); For Polish stations: Łeba - 12120, Legionowo - 12374, Wrocław- 12425
yy	year - single number
mm	month - single number denoting month
dd	day - single number denoting day
hh	hour - single number denoting initial hour of sounding; for most stations this measurement is done twice a day (i.e. at 12 and 00 UTC), sporadically 4 times a day
min	minute - single number denoting initial minute of sounding; applies only to BUFR soundings.
bufr	BUFR or TEMP sounding to be decoded. By default TEMP is used. For BUFR soundings use bufr = TRUE

Value

Returns two lists with values described at: weather.uwyo.edu ; The first list contains:

1. PRES - Pressure (hPa)

2. HGHT - Height (metres)

3. TEMP - Temperature (C)

4. DWPT - Dew point (C)

5. RELH - Relative humidity (%)

6. MIXR - Mixing ratio (g/kg)

7. DRCT - Wind direction (deg)

8. SKNT - Wind speed (knots)

9. THTA = (K)

10. THTE = (K)

11. THTV = (K)

The second list contains metadata and calculated thermodynamic / atmospheric instability indices (for TEMP soundings only)

A list of 2 data.frames where first data frame represents parameters of upper parts o with columns describing the meteorogical parameters (e.g. temperature, air pressure) where each row represent a measurement, depending on the height. Second data.frame presents a description of the conditions under which the sounding was carried out.

Source

http://weather.uwyo.edu/upperair/sounding.html

Examples

##############################################################################
# download data for Station 45004 starting 1120Z 11 Jul 2021; Kowloon, HONG KONG, CHINA
# using TEMP and BUFR sounding formats
##############################################################################
TEMP = sounding_wyoming(wmo_id = 45004, yy = 2021, mm = 07, dd = 17, hh = 12, min = 00)
head(TEMP[[1]])
BUFR = sounding_wyoming(wmo_id = 45004, yy = 2021, mm = 07, dd = 17, hh = 12, min = 00, bufr = TRUE)
head(BUFR[[1]])


##############################################################################
### example with a random date to download sounding from LEBA, PL station: ###
##############################################################################

  profile = sounding_wyoming(wmo_id = 12120, 
                             yy = sample(2000:2019,1),
                             mm = sample(1:12,1), 
                             dd = sample(1:20,1), 
                             hh = 0)
  head(profile)
  plot(profile[[1]]$HGHT, profile[[1]]$PRES, type = 'l')

climate documentation built on Aug. 9, 2022, 5:08 p.m.