# hydrography > applied science of measurement and description of bodies of water **Wikidata**: [Q182468](https://www.wikidata.org/wiki/Q182468) **Wikipedia**: [English](https://en.wikipedia.org/wiki/Hydrography) **Source**: https://4ort.xyz/entity/hydrography ## Summary Hydrography is the applied science of measurement and description of bodies of water, serving as a specialized field within Earth science and geography that focuses on the systematic study of water bodies and their characteristics. ## Key Facts - Hydrography is an academic discipline and academic major focused on measuring and describing bodies of water - It is a subclass of Earth science and geography, operating as a systematic academic discipline - The field has a sitelink count of 77 across various Wikipedia projects - Hydrography is closely related to hydrology, which studies water above, on, and below Earth's land surface - Key practitioners include Francis Beaufort (Irish hydrographer and naval officer, 1774-1857) and Alexander Dalrymple (British geographer, 1737-1808) - The Federal Maritime and Hydrographic Agency of Germany was established in 1868 with 900 employees - Deutsche Seewarte served as the historic precursor to Germany's Maritime and Hydrographic Agency from 1875-1945 - The Siboga Expedition (1899-1900) was a Dutch zoological and hydrographic expedition to Indonesia - Hydrography connects to hydrologic concepts like river regime (predominant pattern of water circulation over a given period) - The field utilizes hydrographic surveys for analysis of water body topography - Structured properties include P244: sh85063443, P268: 119778366, P1036: 551.46, and P373: Hydrography - Aliases include hydrographic survey and hydrographical survey - Instance of Q11862829 and Q4671286 in Wikidata classification - Subclass of Q8008 and Q1071 in knowledge graph hierarchy ## FAQs ### What is hydrography? Hydrography is the applied science of measurement and description of bodies of water, functioning as a systematic academic discipline within Earth science and geography that focuses on the systematic study of water bodies and their characteristics. ### What are the main relationships and classifications of hydrography? Hydrography is classified as an academic discipline and academic major, serving as a subclass of both Earth science and geography. It connects to hydrology, which studies water above, on, and below Earth's land surface, and relates to concepts like river regime and hydrographic surveys. ### Who are the key historical figures in hydrography? Notable practitioners include Francis Beaufort (Irish hydrographer and naval officer, 1774-1857), Alexander Dalrymple (British geographer, 1737-1808), Pierre Bouguer (French astronomer and mathematician, 1698-1758), and Russian figures like Leonid Kolotilo and Mikhail Reyneke. ### What organizations are involved in hydrography? Major organizations include the Federal Maritime and Hydrographic Agency of Germany (established 1868 with 900 employees), the historic Deutsche Seewarte (1875-1945), and institutions supporting related expeditions like the Siboga Expedition to Indonesia (1899-1900). ### What tools and methods does hydrography employ? Hydrography utilizes hydrographic surveys for analysis of water body topography, employing systematic measurement and description techniques to provide data for environmental, tidal calculations, and maritime navigation purposes. ## Why It Matters Hydrography plays a critical role in understanding and managing Earth's water resources by providing the foundational scientific framework for measuring and describing bodies of water. This applied science enables accurate maritime navigation, environmental monitoring, and coastal management through systematic data collection and analysis. The field underpins global shipping routes, coastal development projects, and environmental conservation efforts by creating reliable maps and descriptions of water bodies. Hydrography directly impacts public safety through nautical charting, supports economic activities like fishing and transportation, and contributes to climate change research by documenting changes in water bodies over time. Without hydrographic science, safe navigation of oceans, seas, and waterways would be impossible, and effective management of aquatic ecosystems would lack the necessary scientific foundation. ## Notable For - Serving as the applied science specifically dedicated to measurement and description of bodies of water, distinguishing it from theoretical water studies - Maintaining institutional continuity through organizations like the Federal Maritime and Hydrographic Agency of Germany since 1868 - Supporting major scientific expeditions such as the Siboga Expedition (1899-1900) that combined zoological and hydrographic research - Producing influential practitioners like Francis Beaufort, whose contributions extended beyond hydrography to naval service and cartography - Establishing systematic methodologies for hydrographic surveys that provide essential data for environmental, tidal, and navigational purposes - Creating the foundational knowledge base that enables safe maritime navigation worldwide - Bridging Earth science and geography as an interdisciplinary field with practical applications - Maintaining historical continuity through institutions like Deutsche Seewarte (1875-1945) that evolved into modern agencies ## Body ### Definition and Academic Classification Hydrography operates as the applied science of measurement and description of bodies of water, functioning within the broader academic framework as both an academic discipline and academic major. The field is systematically classified as a subclass of Earth science and geography, positioning it within the interdisciplinary study of planet Earth's systems. This classification reflects hydrography's role in understanding water bodies as integral components of Earth's interconnected systems, connecting to broader Earth science principles while maintaining its specialized focus on aquatic environments. ### Historical Development and Key Practitioners The field of hydrography has been shaped by numerous influential practitioners across different eras and nationalities. Francis Beaufort (1774-1857), an Irish hydrographer and naval officer, exemplifies the intersection of hydrographic practice with naval service and exploration. Alexander Dalrymple (1737-1808), a British geographer, contributed significantly to early hydrographic methodologies and understanding. Pierre Bouguer (1698-1758), a French astronomer and mathematician, brought mathematical precision to hydrographic measurements. Russian practitioners like Leonid Kolotilo, a cartographer, and Mikhail Reyneke (1801-1859), an admiral of Baltic German origin, expanded hydrographic knowledge within their respective regions and contexts. ### Institutional Framework and Organizations Hydrography maintains its scientific rigor and practical applications through institutional support and organizational structures. The Federal Maritime and Hydrographic Agency of Germany represents a significant governmental commitment to hydrographic science, established in 1868 and currently employing 900 people. This agency demonstrates the long-term institutional investment in hydrographic services spanning over 150 years. The historic Deutsche Seewarte operated from 1875 to 1945 as the precursor to Germany's modern maritime and hydrographic services, illustrating the evolution of hydrographic institutions over time. These organizations provide the infrastructure necessary for systematic hydrographic surveys and data collection. ### Methodological Approaches and Tools The core methodology of hydrography centers on hydrographic surveys, which involve the analysis of water body topography to provide essential data for environmental studies, tidal calculations, and maritime navigation. These surveys represent systematic approaches to measuring and describing underwater terrain, depths, and characteristics of water bodies. The field employs specialized techniques that distinguish it from related disciplines like hydrology, focusing specifically on the physical measurement and description aspects rather than broader water cycle analysis. Hydrographic surveys serve as the primary tool for creating nautical charts and understanding underwater geography. ### Connections to Related Scientific Disciplines Hydrography maintains strong connections to hydrology, the science that deals with water above, on, and below Earth's land surface. While hydrology encompasses broader water system dynamics including precipitation, evaporation, and groundwater flow, hydrography focuses specifically on the measurement and description of water bodies themselves. The field also connects to geography as a systematic academic discipline studying terrestrial surfaces and their interactions. River regime, representing the predominant pattern of water circulation over a given period, demonstrates the connection between hydrographic measurement and broader hydrological patterns. These interdisciplinary connections strengthen hydrography's scientific foundation and practical applications. ### Expeditions and Field Research Significant hydrographic knowledge has been gained through organized expeditions that combine multiple scientific objectives. The Siboga Expedition (1899-1900) exemplifies this approach, functioning as a Dutch zoological and hydrographic expedition to Indonesia that integrated biological research with systematic hydrographic surveying. Such expeditions demonstrate hydrography's role in broader scientific exploration and its contribution to understanding aquatic ecosystems in diverse geographical contexts. These collaborative efforts highlight the field's integration with other scientific disciplines while maintaining its specialized focus on water body measurement and description. ### Modern Applications and Impact Contemporary hydrography continues to serve critical functions in maritime safety, environmental monitoring, and resource management. The systematic measurement and description of water bodies enables safe navigation for commercial shipping, recreational boating, and military operations. Hydrographic data supports coastal development planning, environmental impact assessments, and climate change research by providing baseline measurements of water body characteristics. The field's applications extend to offshore oil and gas exploration, renewable energy site selection, and marine conservation efforts, demonstrating its continued relevance in addressing contemporary challenges. ## References 1. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=31537) 2. Nuovo soggettario 3. Freebase Data Dumps. 2013 4. [Registros de autoridad de "Materia" de la Biblioteca Nacional de España. Spain open data portal](https://www.bne.es/media/datosgob/catalogo-autoridades/materia/materia-UTF8.zip) 5. YSO-Wikidata mapping project 6. Quora 7. National Library of Israel 8. KBpedia 9. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)