USDA.gov FAS Home
Link: Skip repetitive navigation links
USDA Foreign Agricultural Service


Lake Erie (0333) Height Variations from TOPEX/POSEIDON/Jason-1 and Jason-2/OSTM Altimetry


Lake Erie







Data/image supplied by NASA. Link opens up new window.

Click anywhere on the graphs to view or download the associated lake level data files.

Shown above are relative lake height variations computed from TOPEX/POSEIDON (T/P), Jason-1 and Jason-2/OSTM altimetry with respect to a datum that is based on a single fly-over date of the Jason-2/OSTM mission. The Jason-2 near real time observations are obtained from the currently available Interim GDR (IGDR). These data have preliminary medium precision orbits (MOE) and several correction fields that are still being finalized. The top panel displays the raw height variations ((open circles denote potential icy or calm-water conditions, large error bars may denote noise or dry lake-bed conditions), while the height variation time series in the lower panel has been smoothed with a median type filter to eliminate outliers and reduce high frequency noise.

The USDA/NASA/SGT/UMD team acknowledges NASA/PODAAC, AVISO, NOAA, and the TU-Delft/NOAA RADS database, for the provision of the TOPEX/POSEIDON, Jason-1, Jason-2/OSTM, GFO, and SARAL altimetric datasets and parameters.




Jump to a new region


Top
Link: Skip repetitive navigation links
  Global Crop Production Estimates and Assessment | USDA.gov | Foreign Agricultural Service (FAS) | Contact Us
FOIA | Accessibility Statement | Privacy Policy | Non-Discrimination Statement | Information Quality | FirstGov | White House