<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31436624</termId><termName>hydrography</termName><termType>PT</termType><termNote><![CDATA[ Description and study of seas, lakes, and other bodies of water. ]]></termNote><termCreatedDate>2026-03-30 20:57:44</termCreatedDate><relation><relationType>UF</relationType><termId>31436625</termId><termName>hydrographic</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31410618</termId><termName>hydrology</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31408076</termId><termName>hydrographers</termName><termType>PT</termType></relation></term>  </Zthes>