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North American Analysis and Synthesis on the Connectivity of "Geographically Isolated Wetlands" to Downstream Waters Geographically Isolated Wetlands (GIWs) occur along gradients of hydrologic and ecological connectivity and isolation, even within wetland types (e.g., forested, emergent marshes) and functional classes (e.g., ephemeral systems, permanent systems, etc.). Within a given watershed, the relative positions of wetlands and open-waters along these gradients influence the type and magnitude of their chemical, physical, and biological effects on downgradient waters. In addition, the ways in which GIWs connect to the broader hydrological landscape, and the effects of such connectivity on downgradient waters, depends largely upon climate, geology, and relief, the heterogeneity of which expands with increasing scale. Developing... Categories: Data, Project; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Active, All Working Groups, Ecosystems, Geographically isolated wetlands, depressional wetlands, perimeter, Water, All tags... Water Connectivity, Water Resources, Wetlands, Fewer tags Transport of dissolved organic matter by river networks from mountains to the sea: a re-examination of the role of flow across temporal and spatial scales The transport of dissolved organic matter (DOM) by rivers is an important component of the global carbon cycle, affects ecosystems and water quality, and reflects biogeochemical and hydrological processes in watersheds. Understanding the fundamental relationships between discharge and DOM concentration and composition reveals important information about watershed flow paths, soil flushing, connectivity to riparian zones, organic matter leaching, soil moisture, and climatic influences. Data to describe these processes - both magnitude and timing - is critical for modeling and predicting watershed DOM dynamics, particularly in light of land use and climate change . Despite several decades of data collection, a synthesis... Categories: Data, Project; Tags: All Working Groups, Completed, Land Resources, River, Water Resources, All tags... organic, Fewer tags