Access to the Near Real-Time SSM/I EASE-Grid Daily Global Ice Concentration product is unrestricted but users must register to receive access information. NSIDC requests that users provide a summary of purpose stating how the data will be used. Registered users will automatically receive release notes containing notification of changes in the product generation algorithm, as well as modifications in data manipulation and formatting. Registered users will also automatically receive notices of any data production problems via e-mail. Your feedback is needed for continued improvement in this product.