WP 1.3: Near-infrared FTIR total column CO2 and CH4 over Europe
Objectives
- Collect systematic time series of column CO2 and CH4 using four near-infrared (NIR) solar FTIR spectrometers
at 2 existing station and 2 new stations
- Link FTIR data to measurements near the ground to evaluate remote sensing fields
Collect systematic time series of column CO2 and CH4 using four near-infrared (NIR) solar FTIR spectrometers
Operation of two existing near-infrared (NIR) solar FTIR stations at Svaalbard, Norway and in Bremen, Germany is sustained by GEOmon. In addition, two more NIR FTIR stations are being added in Bialowieza, Pologne and in at Orleans, France (the latter co-funded with the IMECC project). The installation of FTIR-spectrometer at Bialowieza (Poland) is ongoing, first observations are expected in spring 2009. The FTIR-spectrometer at Orleans will be installed in summer 2009. At these two new stations, in-situ tall towers and regular aircraft profiles are already established as part of CARBOEUROPE. The FTIR groups of activity 4 (stratospheric ozone & climate) are involved allowing to perform NIR measurements in a coordinated way for greenhouse gases and stratospheric species relevant to ozone destruction.
Link FTIR data to measurements near the ground to evaluate remote sensing fields - ground-truth satellites results
The boundary-layer height, vertical profiles, and total column CO2 and CH4 variability are being analyzed by comparing and analyzing the different collocated datasets.
Systematic comparisons with existing satellites data on collocations for SCIAMACHY and AIRS (and with the forthcoming missions OCO and GOSAT as soon as possible) are being performed. Space-time gradients of CO2 and CH4 near the ground and in the air column are quantified, using
FTIR and surface data, the use of FTIR for sources and sinks determination is evaluated. These analysis are performed jointly
with modellers from GEOmon activity 5.
