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Home > Lake Vida Meteorological Station Measurements
Summary

Abstract: 

As part of the Long Term Ecological Research in the McMurdo Dry Valleys of Antarctica, meteorological data was collected from various locations throughout Beacon, Taylor, Wright and Victoria Valleys. These files contain data for the Lake Vida meteorology station.

Date Range: 

Sunday, January 1, 1995 to Wednesday, December 31, 2014
Download VIAM_AIRT.csv [1] (24.29 MB)

...or query the data clicking the:

[2]

Variables: 

DATASET_CODE
  • Label:
  • Definition: Code for given set of information for Lake Vida meteorology station
  • Type: Nominal
  • Missing values: None specified
METLOCID
  • Label:
  • Definition: Location code for Lake Vida meteorology station
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label:
  • Definition: Date/time of sample (New Zealand DST, +13 UTC)
  • Type: Date/time
  • Date format: MM/DD/YYYY HH24:MI
  • Missing values: None specified
AIRT3M
  • Label:
  • Definition: Average air temperature at 3 m above ground
  • Type: Physical quantity
  • Unit: celsius
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values:
    • Null = None given
AIRT_COMMENTS
  • Label: air temperature comments
  • Definition: Noted comments by the investigator about the particular measure of air temperature
  • Type: Nominal
  • Missing values: None specified
Download VIAM_RADN.csv [3] (44.1 MB)

...or query the data clicking the:

[4]

Variables: 

DATASET_CODE
  • Label:
  • Definition: Code for given set of information for Lake Vida meteorology station
  • Type: Nominal
  • Missing values: None specified
METLOCID
  • Label:
  • Definition: Location code for Lake Vida meteorology station
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label:
  • Definition: Date/time of sample (New Zealand DST, +13 UTC)
  • Type: Date/time
  • Date format: MM/DD/YYYY HH24:MI
  • Missing values: None specified
PAR
  • Label:
  • Definition: Photosynthetically active radiation
  • Type: Physical quantity
  • Unit: micromols/second/meter2
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • Null = None given
SWRADIN
  • Label:
  • Definition: Incoming shortwave radiation/solar flux
  • Type: Physical quantity
  • Unit: W/m2
  • Maximum: 900
  • Minimum: 0
  • Precision: 0.1
  • Missing values:
    • Null = None given
SWRADOUT
  • Label:
  • Definition: Outgoing shortwave radiation/solar flux
  • Type: Physical quantity
  • Unit: W/m2
  • Maximum: 900
  • Minimum: 0
  • Precision: 0.1
  • Missing values:
    • Null = None given
RADN_COMMENTS
  • Label: radiation comments
  • Definition: Noted comments by the investigator about the particular measure of radiation
  • Type: Nominal
  • Missing values: None specified
Download VIAM_RH.csv [5] (22.85 MB)

...or query the data clicking the:

[6]

Variables: 

DATASET_CODE
  • Label:
  • Definition: Code for given set of information for Lake Vida meteorology station
  • Type: Nominal
  • Missing values: None specified
METLOCID
  • Label:
  • Definition: Location code for Lake Vida meteorology station
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label:
  • Definition: Date/time of sample (New Zealand DST, +13 UTC)
  • Type: Date/time
  • Date format: MM/DD/YYYY HH24:MI
  • Missing values: None specified
RH
  • Label:
  • Definition: Relative humidity at 3 meters
  • Type: Physical quantity
  • Unit: percent
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values:
    • Null = None given
RH_COMMENTS
  • Label: relative humidity comments
  • Definition: Noted comments by the investigator about the particular measure of relative humidity
  • Type: Nominal
  • Missing values: None specified
Download VIAM_SOILT.csv [7] (32.81 MB)

...or query the data clicking the:

[8]

Variables: 

DATASET_CODE
  • Label:
  • Definition: Code for given set of information for Lake Vida meteorology station
  • Type: Nominal
  • Missing values: None specified
METLOCID
  • Label:
  • Definition: Location code for Lake Vida meteorology station
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label:
  • Definition: Date/time of sample (New Zealand DST, +13 UTC)
  • Type: Date/time
  • Date format: MM/DD/YYYY HH24:MI
  • Missing values: None specified
SOILT0CM
  • Label:
  • Definition: Soil temperature at 0 cm depth
  • Type: Physical quantity
  • Unit: celsius
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values:
    • Null = None given
SOILT5CM
  • Label:
  • Definition: Soil temperature at 5 cm depth
  • Type: Physical quantity
  • Unit: celsius
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values:
    • Null = None given
SOILT10CM
  • Label:
  • Definition: Soil temperature at 10 cm depth
  • Type: Physical quantity
  • Unit: celsius
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.01
  • Missing values:
    • Null = None given
SOILT_COMMENTS
  • Label:
  • Definition: Noted comments by the investigator about the particular measure of SOILT
  • Type: Nominal
  • Missing values: None specified
Download VIAM_WIND.csv [9] (33.55 MB)

...or query the data clicking the:

[10]

Variables: 

DATASET_CODE
  • Label:
  • Definition: Code for given set of information for Lake Vida meteorology station
  • Type: Nominal
  • Missing values: None specified
METLOCID
  • Label:
  • Definition: Location code for Lake Vida meteorology station
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label:
  • Definition: Date/time of sample (New Zealand DST, +13 UTC)
  • Type: Date/time
  • Date format: MM/DD/YYYY HH24:MI
  • Missing values: None specified
WDIR
  • Label:
  • Definition: Average wind direction
  • Type: Physical quantity
  • Unit: degreesfromnorth
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • Null = None given
WDIRSTD
  • Label:
  • Definition: Standard deviation of wind direction
  • Type: Physical quantity
  • Unit: degreesfromnorth
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • Null = None given
WSPD
  • Label:
  • Definition: Wind speed
  • Type: Physical quantity
  • Unit: metersPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • Null = None given
WSPDMAX
  • Label:
  • Definition: Maximum wind speed
  • Type: Physical quantity
  • Unit: metersPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • Null = None given
WSPDMIN
  • Label:
  • Definition: Minimum wind speed
  • Type: Physical quantity
  • Unit: metersPerSecond
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.1
  • Missing values:
    • Null = None given
WIND_COMMENTS
  • Label:
  • Definition: Noted comments by the investigator about the particular measure of WIND
  • Type: Nominal
  • Missing values: None specified
Download VIAM_SURFCHANGE.csv [11] (17.16 MB)

...or query the data clicking the:

[12]

Variables: 

DATASET_CODE
  • Label:
  • Definition: Code for given set of information for Lake Vida meteorology station
  • Type: Nominal
  • Missing values: None specified
METLOCID
  • Label:
  • Definition: Location code for Lake Vida meteorology station
  • Type: Nominal
  • Missing values: None specified
DATE_TIME
  • Label:
  • Definition: Date/time of sample (New Zealand DST, +13 UTC)
  • Type: Date/time
  • Date format: MM/DD/YYYY HH24:MI
  • Missing values: None specified
SURF_CHANGE
  • Label:
  • Definition: Surface Height Change - snowfall / sediment accumulation or loss
  • Type: Physical quantity
  • Unit: centimeter
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: 0.4
  • Missing values:
    • Null = None given
SURFCHANGE_COMMENTS
  • Label: surface change comments
  • Definition: Noted comments by the investigator about the particular measure of surface change
  • Type: Nominal
  • Missing values: None specified

DOI: 

10.6073/pasta/98e13192c4b851c02255ed7e889a29c4

Short name: 

vida_met

Data set ID: 

7016
People

Owner/Creator: 

Andrew G. Fountain [13]
Peter Doran [14]

Contact: 

McMurdo Dry Valleys LTER [15]

Additional Project roles: 

Field Crew
Hassan Basagic [16]
Field Crew
Thomas Nylen [17]
Field Crew
Maciej K. Obryk [18]
Data Manager
Inigo San Gil [19]
Related

Related publications: 

McMurdo Dry Valleys Long-Term Ecological Research (LTER): LTER automatic weather network (LAWN) [20]
Methodology

Methods: 

The Lake Vida meteorological station was added to the McMurdo Dry Valley network in the 1995-1996 field season. It was established on the shore of Lake Vida in Victoria Valley, one of the largest lakes in the dry valleys, recently discovered to have a 19 m ice cover over a hypersaline brine of undetermined depth. The station was set up to sample sensors every 30 seconds and send summary statistics (for example, averages and maximums) to solid-state storage modules every 15 minutes. This has resulted in approximately 20 values being recorded for final storage in every output interval.

Sampling and Averaging Intervals For Sampling frequency and Data Logger output and averaging intervals please visit: http://mcmlter.lternet.edu/data/meteorology/methods/Interval_Dates.pdf [21]

Seasonal Task Summary To view the data post-processing steps for each season please visit: http://mcmlter.lternet.edu/data/meteorology/tasks/task_lists.htm [22]

Maintenance: 

 On September 6, 1999, the data manager added the 1998-1999 data to this dataset. In the process,she did some fine-tuning of the data, which included:
       
1. Addition of  PAR values between Nov 24, 1997 @ 11:30 and Jan 13, 1998 @ 12:00. Thiswas done at the request of Thomas Nylen.
       
On June 1, 2000, the 1999-2000 data was posted. In the process, Denise  Steigerwald changed thelayout of the files so that they were sorted by category (ait temperatures, humidity, radiation,wind etc.) rather than by year. Files containing monthly and daily averages were generated andminor adjustments were made to the metadata.
 
 On June 1, 2000, relative humidity (RH) values were corrected for a systematic error in the measurement created by an instrument manufacturer error. All RH data with air temperatures below freezing  were corrected using the vapor pressure over ice (rather than over water whichwas used initially). The error became quite large for very cold temperatures (the correction couldgrow to around 30%). The formula used for the correction was:
 
       RH_corr=RH_orig/((A*temp*temp)+(B*temp)+C) where 
       RH_corr = corrected relative humidity
       RH_orig = original relative humidity 
       temp = air temperature 
       A = 4.165E-5
       B = 9.7E-3
       C = 1.0
 
 For example, with an air temperature of -2.3 and RH_orig of 50.6, the RH_corr will be  51.7.Records that showed corrected RH values greater than or equal to 100 were changed to 99.99and flagged.
      
 In June 2000, summary files were added to the web containing daily and monthly statistics.These were generated by creating "views" of daily and monthly means,  minimums, maximumsand counts of the records represented in the Oracle database's meteorology tables.

Additional information: 

 Meteorological data is collected year-round at each of the stations in the  McMurdo Dry Valleys of Antarctica. After retrieving this data (usually every January), the parameters that are recorded are processed from level 0 (raw) to level 1 (processed, provided on the web). The raw data file descriptions and task lists summarize what was done to get from level 0 to level 1 for all station found at the following address:
     
     
Categories

MCM Keywords: 

Research Section: 

Keywords: 

Source URL: http://mcm.lternet.edu/content/lake-vida-meteorological-station-measurements

Links
[1] http://mcm.lternet.edu/file/4962/download?token=8C80c3L3DzNnub2Xc_YLts3TubZYadvxngSWjH5RM7k
[2] http://mcm.lternet.edu/node/2710/data
[3] http://mcm.lternet.edu/file/4963/download?token=rAv20-7Q5hgbn99oj_o7pmQzn3_p9Aodyz4TFvpSJPw
[4] http://mcm.lternet.edu/node/2711/data
[5] http://mcm.lternet.edu/file/4964/download?token=WK13wr1NfUCEo_NSZHF7yDkK9chbuUgN3v4LjKXKpZg
[6] http://mcm.lternet.edu/node/2712/data
[7] http://mcm.lternet.edu/file/4965/download?token=BL7sCQMWttAhE3hzyqUbwdVUlDAXPTMhmJ269HD_XLU
[8] http://mcm.lternet.edu/node/2713/data
[9] http://mcm.lternet.edu/file/4966/download?token=ohuywtNkgBGo6B4e4K4iV1x7_DFLDVqbjhg3M-gkO_k
[10] http://mcm.lternet.edu/node/2714/data
[11] http://mcm.lternet.edu/file/4967/download?token=4psNlhUjVOZDTAlWKGGGRBk6xaJB8FctGLF_gsRvtUE
[12] http://mcm.lternet.edu/node/2715/data
[13] http://mcm.lternet.edu/people/andrew-g-fountain
[14] http://mcm.lternet.edu/people/peter-doran
[15] http://mcm.lternet.edu/content/mcmurdo-dry-valleys-lter
[16] http://mcm.lternet.edu/people/hassan-basagic
[17] http://mcm.lternet.edu/people/thomas-nylen
[18] http://mcm.lternet.edu/people/maciej-k-obryk
[19] http://mcm.lternet.edu/people/inigo-san-gil
[20] http://mcm.lternet.edu/content/mcmurdo-dry-valleys-long-term-ecological-research-lter-lter-automatic-weather-network-lawn
[21] http://mcmlter.lternet.edu/data/meteorology/methods/Interval_Dates.pdf
[22] http://mcmlter.lternet.edu/data/meteorology/tasks/task_lists.htm
[23] http://mcm.lternet.edu/station-keywords/air-temperature
[24] http://mcm.lternet.edu/station-keywords/humidity
[25] http://mcm.lternet.edu/station-keywords/lake
[26] http://mcm.lternet.edu/station-keywords/meteorology
[27] http://mcm.lternet.edu/station-keywords/par
[28] http://mcm.lternet.edu/station-keywords/photosynthetic-active-radiation
[29] http://mcm.lternet.edu/station-keywords/photosynthetically-active-radiation
[30] http://mcm.lternet.edu/station-keywords/radiation
[31] http://mcm.lternet.edu/station-keywords/relative-humidity
[32] http://mcm.lternet.edu/station-keywords/rh
[33] http://mcm.lternet.edu/station-keywords/soil
[34] http://mcm.lternet.edu/station-keywords/soil-temperature
[35] http://mcm.lternet.edu/station-keywords/temperature
[36] http://mcm.lternet.edu/station-keywords/wind
[37] http://mcm.lternet.edu/station-keywords/wind-direction
[38] http://mcm.lternet.edu/station-keywords/wind-speed
[39] http://mcm.lternet.edu/section/meteorology
[40] http://mcm.lternet.edu/section/all-15-min-high-resolution
[41] http://mcm.lternet.edu/lter-controlled-vocabulary/air-temperature
[42] http://mcm.lternet.edu/lter-controlled-vocabulary/meteorology
[43] http://mcm.lternet.edu/lter-controlled-vocabulary/photosynthetically-active-radiation
[44] http://mcm.lternet.edu/lter-controlled-vocabulary/relative-humidity
[45] http://mcm.lternet.edu/lter-controlled-vocabulary/wind
[46] http://mcm.lternet.edu/lter-controlled-vocabulary/wind-speed