0011622: Brook generated in Ocean biome with Z-level issue

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ID	Project	Category	View Status	Date Submitted	Last Update
0011622	Dwarf Fortress	World Generation -- General	public	2020-09-13 05:24	2020-09-13 05:24

Reporter	DanielCoffey
Assigned To
Priority	normal	Severity	minor	Reproducibility	random
Status	new	Resolution	open
Platform	PC	OS	Windows	OS Version	10
Product Version	0.47.04
Target Version		Fixed in Version

Summary	0011622: Brook generated in Ocean biome with Z-level issue
Description	On a 6x6 embark with a Woodland biome next to an Ocean biome which happened to have a "receded tide line" I noticed the Ocean biome had generated with a brook that flowed back towards the land. Since there was a 3 Z-level difference between the floor of the Ocean biome and the Woodland, the brook was on a raised sand cliff. The bottom two levels were solid sand and the top level was a sand lip bordering the brook. Due to the "source fingers" of the brook spreading out into the Ocean biome, the water immediately cascaded off onto the sand, causing a large waterfall effect over 2 Z-levels. I would not expect brooks to generate at all in an Ocean biome and certainly not with the 3 Z-level difference.
Steps To Reproduce	Search for an embark with a River that is on the edge of an Ocean biome where the Z-levels are relatively flat.
Additional Information	Image : http://www.dcoffey.co.uk/images/dwarffortress/RiverOnSea.jpg [^] Save at Embark : http://www.dcoffey.co.uk/images/dwarffortress/region1.7z [^] Image is a montage of 4 panels from Stonesense. I cannot show the pre-embark tile on the world embark map since it now shows my settlement. There is a second brook just to the east which also generates in the Ocean biome.
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Issue History
Date Modified	Username	Field	Change
2020-09-13 05:24	DanielCoffey	New Issue

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