In conventional differential radar interferometry (DInSAR), the ground surface displacement can be measured along the line-ofsight. In order to measure the vertical and horizontal displacements DInSAR results of the same deformation derived from at least two different look directions are required. This study utilised the DInSAR results generated from ENVISAT data acquired from three different l...

ENVISAT ASAR Wide Swath data from ascending and descending orbit have been normalized and combined in the eastern Alps in order to increase the covered area from 60-70% to up to 78%. Band rationing was applied for the identification of wet snow surface. Although that probability maps of thawing snow can be derived, combinations of morning and evening orbits are difficult to interpret in late sp...

The interest in the monitoring of sea ice masses has increased greatly over the past decades for a variety of reasons. These include: Navigation in northern latitude waters; transportation of petroleum; exploitation of mineral deposits in the Arctic, and the use of icebergs as a source of fresh water. The availability of ERS-Envisat 28minute tandem acquisitions from dedicated campaigns, coverin...

The capability of satellite radar altimeters to monitor the height changes of major lakes is well established. However, river systems present far more challenging targets. By retracking altimeter echoes using an expert system approach, river heights can be successfully monitored; this capability is bounded by the along-track sampling rate. However, a glimpse into the potential of future altimet...

ERS-ENVISAT cross-interferometry is a unique tool for a number of applications since it combines a short repeat-pass interval (28 minutes) with a long perpendicular baseline (2 km). Temporal decorrelation effects are limited and the sensitivity to topographic features is strongly enhanced. In this contribution the focus is on problems encountered during the coherence estimation in ERS-ENVISAT c...

We present a methodology to validate land surface temperature (LST) retrieved from Advanced AlongTrack Scanning Radiometer (AATSR) data in heterogeneous areas. To this end, a set of algorithms based on Split-Window (SW) and Dual-Angle (DA) techniques has been proposed and evaluated with in situ measurements of LST obtained from field campaigns made in heterogeneous areas. These campaigns were c...

In order to assess the level-2 data retrieval accuracy of selected trace gases (O3, NO2, H2O) from SCIAMACHY and MIPAS, which are part of the atmospheric instrumentation on the recently launched ENVISAT satellite, operational and some scientific products are validated by comparison with other space borne instruments (GOME, HALOE, SAGE II, POAM III). First results of these satellite intercompari...

Arctic sea ice variations are sensitive to environmental changes and global changes. Freeboard thickness two important parameters in change research. Satellite altimetry can provide long-time large-scale monitoring. We estimated the freeboard its for period from 2002 2012 Envisat satellite data. To remove geoid undulations, we reprocessed data using a newly developed mean surface (MSS) model, n...