Access Level 1 Data

The LEVEL 1 data includes additional variables, and has undergone some quality control processing to eliminate reports with erroneous positions. The header for these files is:

BuoyID,Year,Month,Day,Hour,Min,Sec,Lat,Lon,GPSdelay,BPT,BP,Ts,Ta,Th,Batt

where:

Year, Month, Day, Hour, Min, Sec => Time for the variables BPT,BP,Ts,Ta,Th,Batt

GPSdelay ==> Difference in minutes between the time of the position measurement and other variables.

BPT ==> Barometric Pressure Tendency<

BP ==> Barometric Pressure<

Ts ==> Surface Temperature C

Ta ==> Air Temperature C (typically at 1m)

Th ==> Hull Temperature C (inside the buoy)

Batt ==> Battery Voltage

The variables BPT, BP, Ts, Ta, and Th were not quality controlled, except to ensure all values were within reasonable ranges. Values outside of these ranges were set to -999:

BPT: -40 to 40 hPa/hr
BP: 900 to 1100 hPa
Ts: -60 to 40 C
Ta: -60 to 40 C
Th: -60 to 40 C

The data is in CSV format and currently can be downloaded in bulk by year, or by individual buoy. Additional options to allow searches for data or for individual buoys by region, logistics, buoy type, available variables, and time constraints coming soon.

Download Options

Option 1: Data can be downloaded as a single file containing all data for a given year.

Click the links below to download the data for that year.
Alternatively, type the following URL into your browser to download the data for a specific year:

https://iabp.apl.uw.edu/downloadL1?year=yyyy&requesttype=yeardump

Option 2: Download or view data for a particular buoy.

In the tables below, click the preview button to view the data in a new tab or the download button to download the data.
Alternatively, type the following URL into your browser to download the data for a specific buoy by replacing 12345 with the buoy of your choice:

https://iabp.apl.uw.edu/downloadL1?bid=12345&requesttype=bybuoy&option=download

Option 3: Access the data directly via url

All LEVEL 1 individual buoy data files are located in this directory:

https://iabp.apl.uw.edu/Data_Products/LEVEL1_DATA/LEVEL1_By_BID/

A text version of available buoys with header:
BuoyID;Year;WMO;BuoyType;Owner;Logistics;Dates;LatLon;Variables

is available at the following url:

https://iabp.apl.uw.edu/Data_Products/L1_Summary.txt

Data can be downloaded directly using python. For example, the following python code can be used to download the L1_Summary.txt file:
import requests

url = "https://iabp.apl.uw.edu/Data_Products/L1_Summary.txt"
response = requests.get(url)

with open("L1_Summary.txt", "wb") as file:
    file.write(response.content)