Aspen trees (deciduous forest) comprise more than 90% of the sampled SMAPVEX12 forest sites, with an understory layer of shrubs and grass. The dense shrubs make it difficult to access the sites, therefore the soil moisture and vegetation sampling schemes adopted for these sites are different from the cropland sites. A representative circular area […]
Andreas Colliander Jet Propulsion Laboratory On the second science data acquisition flight of PALS (on June 12) I got to fly on board the Twin Otter aircraft for the flight segment after the mid-day refueling stop at Winnipeg airport. Due to the minimal requirement for a second PALS operator on this flight I took Ian’s […]
Eni Njoku Jet Propulsion Laboratory Mariko Burgin University of Michigan Today the skies are clear. PALS is flying again today, and also flew on June 12th. So this is the third PALS flight day. There is hardly a cloud in sight anywhere as PALS takes off. The soil moisture sampling crews are out. […]
Grant Wiseman Agriculture and Agri-Food Canada After much preparation and anticipation it is hard to believe the first week of the SMAPVEX12 campaign is already behind us. The week began with a successful training session held at the Regional Operation Centre (ROC) in Winnipeg. Field teams were instructed on how to use Hydra Probes, CropScan […]
Eni Njoku We’ve been rained out for four straight days Friday through Monday due to unstable weather conditions in the area – not exactly what we expected! On the other hand we should certainly observe some pretty wet fields when we make our next PALS flights. On Saturday things looked good in the early morning […]
Andreas Colliander Below are quick-look images from yesterday’s first science flights (June 7). A single polarization each of the radiometer and radar are shown. The data are from high-altitude lines 3 through 8 (lines 1 and 2 were not acquired). For reference, the study site map is also shown (at right). The radiometer brightness temperature […]
Mike Cosh June 7th was our first day of soil moisture sampling in the SMAPVEX12 experiment after two days of training and rehearsal. Beginning at 6:45am, 13 soil moisture teams set out to record surface soil moisture at 59 fields. By 2pm, the teams had returned successfully measuring moisture at 53 fields. For more […]
Eni Njoku Today was planned as the first full day of science flights and soil moisture sampling. The morning Go/No-Go telecon confirmed our “Go” decision of yesterday evening, so the ground sampling crews were given the signal to head for the fields (an hour or more drive from Winnipeg) and the PALS folk headed for […]
Eni Njoku Today was a test day, to go through the PALS/Twin Otter flight operations, and for the ground teams to get familiar with the soil and vegetation sampling equipment and the field site locations. Test Flight We were at the airport by 8 am. The plane was outside being prepared by Richard and Dave […]
