An isohyet or an isohyetal line is a line that joins places of same rainfall on a map within a given time period. A map of isohyets is also known as an isohyetal map.
The Mackenzie Delta is formed on the Mackenzie river which is the longest river system in Canada. The delta is a home to vast regions of Boreal forests.
The time gap between spring and neap is approximately 7 days. The neap tides refers to a period of moderate tides when the sun and moon are at right angles to each other. The spring tides are high tides.