RESEARCH BASE
Search 3,721 documents across 34 fields — every claim tier-rated by evidence
3,633 are the core, quality-scored corpus (34 lettered sections — see How We Work); the remaining 88 are cross-corpus synthesis documents (68 InterDocs, 12 Connections, 8 Theories) also indexed here.
2,596 results for "536 CE" — page 5 of 130
ZF_5_01 — Autonomous Underwater Vehicles and Ocean Exploration Technology
Ocean exploration technology — from early human-occupied submersibles to modern autonomous underwater vehicles (AUVs) — has progressively opened the deep ocean to scientific investigation, driving transformative discover
ZF_5_02 — Sonar and Acoustic Ocean Sensing: Technology and Discovery
Sonar (SOund NAvigation and Ranging) is the primary technology for sensing the underwater environment — an acoustic analog to radar that exploits the fact that sound travels efficiently through water while electromagneti
ZF_5_20 — Wallace Line: Biogeographic Boundary and Deep-Time Distribution Patterns
The Wallace Line is a biogeographic boundary running through the Malay Archipelago, separating the fauna of Asia (Sunda Shelf) from that of Australasia (Sahul Shelf). First identified by Alfred Russel Wallace during his
ZF_5_10 — Marine Biotechnology: Blue Pharmacy and Ocean Genetic Resources
The ocean harbors an estimated 2.2 million species (most undescribed) across environments spanning freezing polar waters to superheated hydrothermal vents, anoxic sediments to UV-drenched coral reefs — a staggering diver
ZF_5_12 — Paleocene-Eocene Thermal Maximum: Ancient Anoxic Ocean Crisis
The Paleocene-Eocene Thermal Maximum (PETM), occurring approximately 55.8 million years ago (latest Paleocene), was one of the most dramatic and rapid climate change events in the Cenozoic, offering the closest geologica
ZF_5_16 — Ocean Observation Networks: Global Monitoring of the Marine Environment
Ocean observation networks constitute the global infrastructure for monitoring the physical, chemical, and biological state of the world's oceans in near-real-time. The centerpiece of modern ocean observation is the Argo
ZF_5_22 — Cetacean Cognition: Marine Mammal Intelligence and Problem-Solving
Cetaceans (whales, dolphins, porpoises) display a suite of cognitive capacities that meet or exceed those of great apes on multiple comparative measures, despite an evolutionary lineage independent from primate cognition
ZF_5_05 — UNCLOS and Ocean Governance: Maritime Law, EEZ, and High Seas
The United Nations Convention on the Law of the Sea (UNCLOS), adopted in 1982 and entering into force in 1994, is the comprehensive legal framework governing all uses of the world's oceans — often called the "Constitutio
ZF_5_06 — Ocean Energy: Tidal Power, Wave Energy, and OTEC
Ocean energy encompasses a family of renewable energy technologies that harvest the ocean's vast stores of kinetic, thermal, and chemical energy — including tidal power (predictable tidal flow and range), wave energy (wi
ZF_4_08 — Ocean Acidification Paleoclimate Record
Ocean acidification — the decrease in seawater pH caused by absorption of atmospheric CO₂ — is not only a modern phenomenon but has occurred repeatedly throughout Earth's history, leaving distinctive signals in the geolo
ZF_4_17 — Anthropogenic Ocean Noise: Acoustic Pollution and Marine Life
Anthropogenic ocean noise — the introduction of human-generated sound into the marine environment — has increased dramatically since the mid-20th century, transforming the ocean soundscape from one dominated by biologica
ZF_4_11 — Sea Ice Dynamics and Polar Oceanography
Sea ice — frozen seawater that forms a thin crust (typically 1–4 m thick) over polar and subpolar oceans — is one of Earth's most dynamic and climate-sensitive features, playing a disproportionate role in global climate
ZF_4_13 — Ocean Noise Pollution: Anthropogenic Sound and Marine Life
Ocean noise pollution — the introduction of excessive or harmful human-generated sound into the marine environment — has emerged as one of the most pervasive and least visible threats to marine ecosystems. Sound travels
ZF_4_03 — Desalination and Ocean Water Resources
Desalination — the removal of dissolved salts from seawater or brackish water to produce freshwater — has become an increasingly critical technology as global freshwater demand rises and climate change intensifies drough
ZF_4_02 — Ocean Pollution and Plastic Debris
Ocean pollution encompasses the introduction of harmful substances and materials into the marine environment, degrading water quality, damaging ecosystems, and threatening human health. The major categories are: plastic
ZF_4_06 — Ocean Remote Sensing and Satellite Oceanography
Satellite oceanography — the use of Earth-orbiting sensors to observe ocean properties from space — has transformed ocean science since the 1970s from a data-sparse field reliant on sparse ship transects to a globally co
ZF_4_18 — Deep Ocean Microplastics
Deep ocean microplastics — synthetic polymer particles smaller than 5 mm that have infiltrated the deepest marine environments on Earth — represent one of the most alarming and poorly understood dimensions of global plas
ZF_4_10 — Coral as Climate Archive — Paleoceanographic Proxies
Coral paleoclimatology uses the geochemical and physical properties of coral skeletons as high-resolution archives of past ocean conditions — providing some of the most detailed tropical climate records available for the
ZF_4_16 — Microplastics in the Ocean: Sources, Pathways, and Ecological Impact
Microplastics — plastic particles smaller than 5 mm in diameter — have become one of the most pervasive and persistent pollutants in the global ocean. First systematically described as a marine pollutant by Richard Thomp
ZF_4_15 — Ocean Sediments: Deep-Sea Cores, Proxy Records, and Paleoclimate
Ocean sediments are the Earth's most comprehensive climate archive — a continuous record of planetary conditions extending back over 200 million years, slowly accumulated grain by grain on the deep seafloor at rates of m
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