CSIROs Ed Charmley said the work was conducted because of concerns about the large differential between NGGI
and IPCC methane emission figures for Australian cattle, and doubt surrounding the accuracy of previous calculation methodologies used for cattle, particularly northern Australian cattle.
Participants then provided urine samples for CTGI and NGGI
testing by nucleic acid amplification test (NAAT).
year) from grazed pastures at Wagga Wagga, NSW, using NGGI (1996) and IPCC (1996) methodology, and micrometeorological methods (flux-gradient, convective boundary layer, and mass balance) Methodology [N.
NGGI (1996) Australian Methodology for the Estimation of Greenhouse Gas Emissions and Sinks, Agriculture.
B) Adapted from AGO (2000), NGGI
(1999c), and Dalal and Carter (2000).