(a) Authority. The city is authorized under M.S. § 462.355, subd. 4, as it may be amended from time to time, to regulate, restrict or prohibit any use, development or subdivision within the jurisdiction or a portion thereof while the city is conducting studies, or has authorized a study to be conducted or has scheduled a hearing to consider adoption or amendment of the Comprehensive Plan or official zoning controls. The city declares that the following moratoria are established pursuant to the aforementioned statute.