Seaweed in the Schleswig-Holstein Wadden Sea 1994-09-13

Aircraft mapping of seagrass meadows since 1991 as part of the Trilateral Monitoring Programme (TMAP). 2 density classes of closed stocks are recorded. The identification of the surfaces from the sports aircraft is only possible from about 25% coverage, Zostera nana and Z. marina are not differentiated. The results are entered in maps according to the observations, and the positional inaccuracies are greater for remote stocks. Similar, but differing, mappings from 1989 and 1990 are available in the context of ecosystem research in Schleswig-Holstein's Wadden Sea.本数据集作为三边监测计划（Trilateral Monitoring Programme, TMAP）的组成部分，涵盖1991年以来的海草床航空测绘成果。本次测绘共记录了两类密度等级的封闭型海草群落；仅当海草床覆盖度约达25%时，方可通过运动类航空器完成其地表覆盖的识别，且未区分矮大叶藻（Zostera nana）与大叶藻（Zostera marina，缩写Z. marina）两个物种。测绘结果依据现场观测记录标注于地图中，偏远海草群落的位置误差相对更大。1989年与1990年开展的同类但存在细节差异的测绘成果，可在德国石勒苏益格-荷尔斯泰因州（Schleswig-Holstein）瓦登海（Wadden Sea）的生态系统研究项目中获取。