Satellite Microwave Radar Observations . . .
INTRODUCTION Since 1991 a number of international satellites have collected microwave radar image data over Arctic and Antarctic sea ice. The recent successful launch of the ADEOS I satellite, with the NASA NSCAT instrument, also enables additional weather-independent global sea-ice radar data to be...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Text |
| Language: | English |
| Published: |
1996
|
| Subjects: | |
| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.3997 http://polar.jpl.nasa.gov/Publications/BAMS_Cancun.pdf |
| Summary: | INTRODUCTION Since 1991 a number of international satellites have collected microwave radar image data over Arctic and Antarctic sea ice. The recent successful launch of the ADEOS I satellite, with the NASA NSCAT instrument, also enables additional weather-independent global sea-ice radar data to be acquired and archived in the US. With its pair of 500 km-wide parallel swathes, this radar scatterometer is capable of acquiring data over the entire polar oceans in less than 1 day. The advantages which scatterometer data offer over 25 km resolution, shorter-wavelength passive microwave instruments such as SSM/I are that sea-ice data retrieval is not limited by atmospheric water vapor content, and also that they approach a higher resolution (~8-10 km at high latitudes) with new imaging techniques (Drinkwater et al., 1993). Together with complementary high resolution (100 m) Synthetic Aperture Radar (SAR) microwave imaging, these frequent repeat data provide a powerful tool for add |
|---|