Extract USHCN Monthly Station Data
Description
Monthly minimum temperature, maximum temperature, and precipitation data can be downloaded from the United States Historical Climatology Network (USHCN) website, but these data are in a different format than the one used by Dendro Tools. This tool transforms these data into the format used by Dendro Tools (i.e., Year / Month / Temp , where each "/" is a tab).
Input
File
Select the input file by clicking on "Browse" and navigating to the proper file.
Input Data Format
Data are downloaded from the USHCN website by variable (i.e., mean temperature, precipitation, etc.). The file then needs to be extracted from the compressed format, and then it can be input into Dendro Tools as is for processing. Station data in this compressed file are organized by station number. Therefore, the "ushcn-v2.5-stations.txt" file will need to be consulted to determine the specific station number to extract from this compressed format. The extracted file can then be input into Dendro Tools as is for processing.
Start Row
This input is the row number where the main data to be processed begin in the dataset. Data downloaded from USHCN and input as is into Dendro Tools will have a start row of one. This value is entered by default. An example of how row numbers are entered is shown in Figure 2 located in the Running Dendro Tools topic.
Data Type
Select the variable being extracted.
Output
Units
Select the units for the output data.
File
Select the file where the new data will be stored.
Header
Information entered here will be output in the first line of the output file.