| America\'s_Wetland__Campaign_to_Save_Coastal_Louisiana Information about one of the largest and most productive expanses of coastal wetlands in North America, now disappearing rapidly, and efforts to protect and restore it. |
| Army_Corps_of_Engineers_-_Wetlands_Research_Program Research program designed to advance the state of the art of wetlands science, engineering, and technology. |
| Army_Corps_of_Engineers_Sacramento_District_Regulatory_Home_Page Information related to wetlands, especially U.S. federal regulation of wetlands. |
| Bolsa_Chica_Wetlands_Restoration_Project Information about this wetland area and its restoration. In Orange County, California. |
| British_Columbia_Wetlands_Society Mission is to promote the conservation of British Columbia's wetland ecosystems through education, research and stewardship. |
| The_California_Resources_Agency_Wetlands_Web Comprehensive information about wetlands and their management in California and elsewhere. Content designed for the general public, the educational community, and government agencies. |
| Camosun_Bog_Restoration_Group Working in Pacific Spirit Regional Park in Vancouver to restore an ancient and sensitive habitat. |
| Citizens_for_a_Green_North_Tonawanda Wetland preservation and environmental education. |
| Classification_of_Wetlands_and_Deepwater_Habitats_of_the_United_States_Manual Report by wetland ecologists (Cowardin et al.) for the U.S. Fish and Wildlife Service, 1979. |
| The_Coalition_for_Wetland_Protection Coalition of non-governmental organizations and scientific institutions focused on supporting and protecting the wetland areas of Poland. News, technical and issues information, and images of Polish w |
| Compensating_for_Wetland_Losses_Under_the_Clean_Water_Act___(2001),_Table_of_Contents Technical report by a committee of the National Academy of Sciences (2001). Covers wetlands restoration, mitigation, and related topics. |
| The_Digital_Field_Trip_to_The_Wetlands Learn about wetland ecology, including types, organisms, food webs, bog formation and conservation with Digital Frog International's award-winning educational CD-ROM. |
| Dr__Julian_Thompson_-_Wetland_Research_Unit Wetlands research (primarily in Africa and Asia) and courses offered at University College, London. Includes publications. |
| Duke_University_Wetland_Center The goal of the Duke University Wetland Center is to provide sound scientific knowledge that will lead to sustainable wetland functions and values for the nation and the world. |
| Electronic_Wetlands_Herbarium On-line field guide to U.S. wetlands plants. |
| Everglades_Library Internet resource library of information on the Florida Everglades and its restoration. |
| Flynn_Bogs_System A study of a bog system in Leon County Texas, describing the various habitats found, and the wildlife that inhabit them. |
| Friends_of_Bushy_Park_Wetlands Organization assists Parks Victoria rangers in the passive development of this wetland and sanctuary for 90 bird species in Glen Waverley, Australia. Includes information on wetlands and their biology |
| Ginninderra_Wetlands_Care_Group Wetlands management organization in Canberra ACT Australia. Site includes local and general wetlands information. |
| King_County_Wetland_Topics Information about wetlands, wetland plants and wildlife, development and mitigation rules, and educational programs from King County Department of Natural Resources, Washington State. |
| Kushiro_International_Wetland_Centre Archived newsletters and other information regarding wetlands matters in Japan's Kushiro region and other parts of the country, as well as international wetlands topics. |
| Lake_Koshkonong_Wetland_Association Promotes Lake Koshkonong and the Rock River in southern Wisconsin including the life of natural plants, fish, birds, and other forms of wildlife in the basin. |
| Louisiana_Coast_Web_Site contains information and links relating to coastal restoration projects in Louisiana. Site funded by the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA). |
| Mike_Walter\'s_Wetlands_Page Annotated links to wetlands-related sites, especially those with an Indiana focus. |
| National_Wetlands_Inventory Maps and other information on U.S. wetlands, from U.S. Fish and Wildlife Service. |
| Ohio_Wetlands_Foundation Non-profit providing wetland, off-site compensatory mitigation credits and funding wetlands research and education |
| The_Olentangy_River_Wetland_Research_Park About wetland research and education facility at Ohio State University. |
| Penn_State_Cooperative_Wetlands_Center Information about interdisciplinary research, monitoring, and training regarding wetlands and related resources, with an emphasis in the U.S. Mid-Atlantic and Northeastern states. One activity is deve |
| Pitt_Polder_Preservation_Society Established promote the protection of wetlands in the Maple Ridge/Pitt Meadows area in British Columbia, Canada. Provides information about bogs, other wetland types, and their values and functions. |
| Ramsar_Convention_on_Wetlands Official site of the secretariat for the Convention on Wetlands, signed in Ramsar, Iran, in 1971. This intergovernmental treaty provides a framework for national action and international cooperatio |
| The_rehabilitation_of_Creery_Wetlands Provides an overview of the rehabilitation of the area including the re-introduction of the quenda. |
| Riparian_and_Wetland_Research_Program_of_the_University_of_Montana Research group dealing with issues relating to the ecology and management of riparian and wetlands of the state and the region. |
| Siberian_Crane_Wetland_Project A six-year effort to sustain the ecological integrity of a network of globally important wetlands in Asia, using the Siberian Crane as a flagship species. |
| Society_for_the_Conservation_of_Philippine_Wetlands Network of wetland workers and advocates who engage in activities supportive of wetland conservation objectives. |
| Society_of_Wetland_Scientists a non-profit organization founded to promote wetland science and the exchange of information related to wetlands. |
| South_Florida_Wetland_Ecosystems_Lab Describes wetlands research activities, including studies of mangrove ecology and water quality impacts in the Everglades. |
| Southern_California_Wetlands_Recovery_Project Goal is to accelerate the pace, the extent, and the effectiveness of coastal wetland restoration in Southern California through developing and implementing a regional prioritization plan for the acqu |
| Swampy A kids' introduction to wetlands, featuring a cartoon character, with photos of wetlands and watersheds in different parts of the United States. Includes professional resume for the Kentucky wetlands |
| TOWRA-Net_-_Towra_Point_Nature_Reserve All about Towra Point Nature Reserve - Sydney's most important wetland |
| U_S__EPA_Wetlands_Homepage About wetlands, U.S. wetlands regulation, and other U.S. governmental efforts to protect these areas. Includes large collection of internet links. |
What is UMBRAS' goal?Why UMBRAS?How does UMBRAS Work?What does it look like?
Where will UMBRAS go?When can it be done?Who is UMBRAS?
04-03-11Who else works on occulters?Publications 
The diagram at right is a conceptual simplification of the arrangementof the essential elements in the UMBRAS mission:Space TelescopeOcculterSunStarThe plan view is from above the sun-occulter-telescope plane looking back at the occulting vehicle and telescope (not drawn to scale). The occulter is placed betweentarget star and telescope blocking the starlight and allowingfainter objects to be viewed near the star around the edge ofthe occulter.