Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
PAR absorption of southern bracken and Setaria for (left) a sunny day (5 December 2007) and (right) a typical overcast day (5 January 2008). Radiation data for model initialization are taken from the micrometeorological station at the bracken experimental site (BS in Fig. 1)
