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Northwestern California/Klamath Bioregion Environment Information Sources



© Marc Hoshovsky		  

This research guide lists print and Internet resources that are general introductions or major data compilations on the northwestern California/Klamath Bioregion. Entries marked with a are key resources and databases.

For more specific studies and site-specific studies:

For further assistance please contact Robert Sathrum, Natural Resources Librarian.

Resources by Theme

Resources by Environment

Resources by Watershed

  • Klamath--directories and resources

Geospatial Resources

General


Directories--resources that are guides and portals to other information resources

Resources

Agriculture & Forestry

Coast and Ocean


For marine maps see Northwestern California Maps--Marine

Energy & Mineral Resources

  • Assessment of Mineral Resource Potential of the Western Half of the Redding 1:250,000 Quadrangle, Northwestern California (Silberman) 1994 (US Geological Survey Series Open Report 93:0296) (TN 24 C2 A88 1994 Hum Co Coll)
  • California Oil and Gas Fields. Vol 3. Northern California (California Department of Conservation. Division of Oil and Gas) 1981 (Cal Docs C 815 O5b vol. 3) Includes maps and data sheets that contain geologic and statistical data on each oil and gas field in northern California.
  • Humboldt County General Plan Energy Element and Background Technical Report (Redwood Coast Energy Authority and Schatz Enegy Research Center) 2005. Planning and policy document prepared for the Humboldt County General Plan with accompanying backgound document on energy use and existing and potential production.
  • Mineral Resources of Humboldt County (Averill) 1942 (TN 24 C2 A84 1942 Hum Co Coll)) Reprinted from California Journal of Mines and Geology, Report XXXVII of the State Mineralogist, October 1941.
  • Mines and Mineral Resources of Del Norte County, California (O'Brien) 1952 (TN 24 C2 O27 1952 Hum Co Coll)
  • Mines and Mineral Resources of Trinity County, California (O'Brien & Aune) 1965 (TN 24 C2 O27 Hum Co Coll)
  • National Oil & Gas Assessment: Northern Coastal (Province 7) (U.S. Geological Suvey Energy Resources Program) Periodic assessment of the oil and natural gas endowment of the United States. For each province includes a overall geological assessement and individual assessments of each play.
  • Wind Energy Assessment for Northwestern California (Ruff) 1983 (TJ 820 W55 1983 Hum Co Coll) Prepared for the California Energy Commission.

Environmental Pollution


For environmental pollution maps see Northwestern California Maps--Environmental Pollution

  • American Lung Associaton State of the Air: Calif ornia (American Lung Association) Annual report that presents county-level air quality information for ozone and particle pollution using the most up-to-date quality assured data available for nationwide comparisons. Includes two measures of particle pollution--short-term exposure, which are occasional spikes in particle pollution from relatively infrequent events; and the year-round or chronic exposure from particles produced routinely in the environment. In addition, the report includes ozone data for each county that has an ozone monitor. For each county statistics are given for number of people sensitive to air pollution, e.g., children under 14, people with asthma or emphysema.
  • California Air Quality Data (California Air Resources Board) Monthly with annual summaries (Print copy available in Cal Doc A 1165 A4) Contains ambient air quality data obtained from air monitoring stations. Access data by region, county and other parameters.
  • Scorecard: Humboldt County, Del Norte County, Siskiyou County, Trinity County, Mendocino County (Environmental Defense Fund) Uses data from federal and state sources to profile local environmental quality issues including air quality, toxic and animal waste generation, water quality, and environmental justice. Includes data, maps and lists of industrial facilities with chemical releases
  • Surf Your Watershed: County Information - Humboldt, Del Norte, Trinity, Mendocino, Siskiyou (US Environmental Protection Agency) Each county link lists watersheds located within the county. Each watershed has links to sites that include information on watershed health, air quality, toxic waste, water quality, stream flow, water use, land characteristics, and environmental organizations.

Geology


This section predominately lists resources that are regional in scope. For more detailed or site-specific studies check 1) HSU Library Catalog for books; 2) GeoRef for journal articles, government documents, conference papers, and theses; and 3) references in the following citations. For geologic maps see Northwestern California Maps--Geology.

Land Use and Ownership

Natural Communities & Habitats


For maps of natural communities and habitats see Northwestern California Maps--Natural Communities & Habitats

Natural Hazards


For maps of natural hazard see Northwestern California Maps--Natural Hazards

  • California Nevada River Forecast Center (US National Weather Service) Includes precipation data grouped by drainage area for periods covering the past 1, 2, 3, 6, 12, and 24 hours; river stage/flow for the past 5 hours, river flood outlook, and other related data.
  • Cascadia Tsunami Deposit Database (Peters, Jaffe, Gelfenbaum and Peterson) 2003 (US Geological Survey Open File Report 03-13) Contains data on the location and sedimentological properties of tsunami deposits found along the Cascadia margin. Data have been compiled from 52 studies, documenting 59 sites from northern California to Vancouver Island, British Columbia that contain known or potential tsunami deposits. Bibliographical references are provided for all sites included in the database.
  • Earthquake Hazards in the Pacific Northwest--An Overview (Rogers, Walsh, Kockelman and Priest) IN Assessing Earthquake Hazards and Reducing Risk in the Pacific Northwest. Vol 1 (Rogers, Walsh, Kockelman and Priest) 1996, pp 1-54 (Docs I 19.16:1560) (USGS Professional Paper 1560) Introduction to the potentials of a great earthquake on the Cascadia thrust fault.
  • Earthquakes, Tsunami and Preparedness (Humboldt State University Geology Department) Links to maps, tables, reports and bibliographies on current and historical earthquakes and tsunamis on the northcoast of California.
  • Fire Regimes, Fire History and Forest Conditions in the Klamath-Siskiyou Region: an Overview and Synthesis of Knowledge (Frost and Sullivan) 2000 (print copy available in SD 421 F76 2000 Humboldt County Collection) Report prepared for the World Wildlife Fund Klamath-Siskiyou Ecoregion Program that compiles and synthsizes information relating to the historic and contempory role of fire in forest ecosystems of the Klamath Mountains. Includes a 'Bibliography on Fire Ecology and Fire/Fuels Management in the Klamath Mountains, Northwest California and Southwest Oregon".
  • Flood Insurance Study (FIS): Humboldt County, Del Norte County, Siskiyou County, Trinity County, and Mendocino County (US Federal Emergency Management Agency) Series of narrative reports of a community's flood hazards that gives prior flooding information; identifies flood sources, and gives a graphic description of the flood sources. Flood Insurance Rate Maps (FIRMs) are a byproduct of the FISs. See the entry under Maps and Atlases - California (Northwestern) - Natural Hazards for further information on FIRMs. The HSU Library has the following FISs in paper format for Humboldt County. Other FISs are available in Docs FEM 1.209 and FEM 1.209/5.
    • Flood Insurance Study: City of Arcata, California, Humboldt County 1982 (HG 9983 A7 1982 Hum Co Coll)
    • Flood Insurance Study: City of Eureka, California, Humboldt County 1988 (HG 9983 H9 1988 Hum Co Coll)
    • Flood Insurance Study: City of Fortuna, California, Humboldt County 1981 (HG 9983 F6 1981 Hum Co Coll)
    • Flood Insurance Study: City of Rio Dell, California, Humboldt County 1981 (HG 9983 R5 1981 Hum Co Coll)
    • Flood Insurance Study: Humboldt County, California, Unincorporated Areas 1988 (HG 9983 H9 1988 Hum Co Coll)
  • Humboldt County Natural Resources and Hazards Report (Humboldt County Planning Department) Prepared as a backgound document for the county General Plan update. The report provides an assessment of current conditions related to water (surface, ground, and pollution) and watersheds; biological resources (vegetation, fisheries, and special status species); forest lands (including Timberland Production Zones); agricultural production (including soils and economic structure); parks, recreation, and open space; cultural resources (historical and archaeological sites and landmarks); mineral and energy (sand and gravel, rock, metal, and oil and gas); scenic qualities; and air quality (climate and pollutants). Potential hazards evaluated in this report are geotechnical, soil, and seismic; flooding; fire and toxics; and noise. The report includes a large collection of supporting maps and figures.
  • Northern California Earthquake Data Center (University of California Berkeley Seismological Laboratory and U.S. Geological Survey) Archive and distribution center for seismological and geodetic data for northern California.
  • "Northern California Seismicity" (Uhrhammer) IN Neotectonics of North America (Slemmons) 1991, pp 99-106 (QE 71 G48 1986 suppl.) Discusses the characteristics of the northern California seismicity in general and in its six structural provinces.
  • "Northern California Coast: the Oregon Border to Shelter Cove" and "Point Delgata to Point Arena" IN Living with the Changing California Coast (Griggs, Patsch and Savoy) 2005 (TC 224 C2 L58 1985) Introductory chapters discuss coastal processes and hazards, alternatives for combating or mitigating shoreline damage or erosion, and coastal land use planning and regulation. The majority of the book is a detailed regional characterization of the California coastline with maps delineating hazardous areas and existing erosion rates.
  • Planning Scenario in Humboldt and Del Norte Counties, California for a Great Earthquake on the Cascadia Subduction Zone (Toppozada) 1995 (California Division of Mines and Geology Special Publication 115) (TA 654.6 P53 1995 Hum Co Coll) Report assessing the consequences of a major earthquake on the Cascadia Subduction Zone by establishing a scenario earthquake and resulting tsunami and assessing the resulting damage to buildings, transportation lifelines, and utility lifelines.
  • Quaternary Faults and Fold Database of the United States: California (US Geological Survey) Contains information on faults and associated folds in California that are believed to be sources of M>6 earthquakes during the Quaternary (the past 1,600,000 years). Maps of these geologic structures are linked to individual descriptions and references for each structure. Search using a map-based interface that breaks the state into 1 x 2 degree quadrangles that includes Crescent City, Eureka, Weed and Redding.
  • Seismic Safety and Public Safety Elements of the Humboldt County General Plan (Humboldt County Planning Department and Envicom Corporation) 1979 (HT 393 C32 H857 1979b Hum Co Coll) Identifies and evaluates natural hazards and formulates policies for reducing risks from these hazards. Natural hazards include seismic activity, shoreline erosion, flooding, fire, landslides and industrial accidents.
  • Seismicity of California's North Coast (Bakun) 2000 Bulletin of the Seismological Society of America: 90(4):797-812 (Periodical QE 531 S3) Discusses specific 19th Century and 20th Century northwestern California earthquakes greater than magnitude 6 and their pattern in relation to the 1906 San Francisco Earthquake.
  • Sources of North Coast Seismicity (Dengler, Carver and McPherson) 1992 California Geology 45(2):40-53 (Cal Docs C 810 M5) Describes historical earthquakes, summarizes evidence of older events and discusses potential sources of damaging earthquakes.

Soils

  • Guides
    • Guide to the Soil-Vegetation Maps of Humboldt County, California (Black) 1964 (map G 4361 J3 s31 U5 Guide--filed in upright filing cabinet in Map and Atlas Collection) Explanatory material compiled from individual Legends and Supplemental Materials to Accompany Soil-Vegetation Maps of California that contains in one guide 90% of all keys and explanatory material.
    • Soil and Vegetation Maps of California with an Emphasis on Northwestern California. HSU Library handout available in the Map and Atlas Collection that discusses the major soil surveys that cover northwestern California.
    • Upland Soils: Soil-vegetation maps of California, a Guide and Composite Legend (Cooper) 1975 (S 599 C2 C66 Hum Co Coll)
  • Maps and Reports
    • Report and General Soil Map, Humboldt County, California (U.S. Soil Conservation Service) 1967 (S 599 C2 U55 Hum Co Coll) Reconnaissance level survey at a scale of 1:126,720.
    • Report and General Soil Map, Del Norte County (U.S. Soil Conservation Service) 1967 (S 599 C2 U54 Hum Co Coll) Reconnaissance level survey at a scale of 1:126,720.
    • Report and General Soil Map, Siskiyou County, California (U.S. Soil Conservation Service) 1967 (S 599 C2 U4757) Reconnaissance level survey at a scale of 1:126,720.
    • Soil Survey of Klamath National Forest Area, California: parts of Siskiyou County, California and Jackson County, Oregon (U.S. Forest Service. Pacific Southwest Region) 1992 (S 599 K55 F68 1992)
    • Soil Survey of Mendocino County, Eastern Part, and Trinity County, Southwestern Part, California (U.S. Soil Conservation Service) 1991 (Docs A 57.38: M52/4)
    • Soil Survey of Mendocino County, California, Western Part (U.S. Natural Resources Conservation Service) 2001 (print copy available in Docs A57.38/5:M52)
    • Soil Survey of Shasta-Trinity Forest Area, California (U.S. Forest Service) 1983 (Docs A 57.38: Sh2/1) Report and 1:24,000 scale maps completed as part of the National Cooperative Soil Survey.
    • Soil Survey of Siskiyou County, California, Central Part (U.S. Soil Conservation Service) 1983 (Docs A 57.38: Si8)
    • Soil Survey of Six Rivers National Forest Area, California: parts of Del Norte, Humboldt,  Siskiyou and Trinity counties (Miles & Roath) 1993 (S 599 C2 M55 1993)
    • Soil Survey of the Eureka Area (Watson) 1921 (QH 84.8 W3 Hum Co Coll) Outdated SCS survey. An updated soil suvey that covers Humboldt County is in production.
    • Soil Survey of Trinity County, California, Weaverville Area (U.S. Natural Resources Conservation Service) 1997 (Docs A 57.38/5: T73)
    • Soil-Vegetation Maps (California Cooperative Soil Vegetation Survey) (map G 4361 J3 s31 U5) Ongoing series that maps the soil and vegetation characteristics in units as small as 10 acres at scales of 1:31,680 and 1:24,000. Each map sheet covers the same geographic area as a USGS 1:24,000 topographic map. Geographic coverage is mostly northern California. See the index on the Map Display Panel in the Atlas and Map Collection in the Library for extent of coverage. Located in the upright map filing cabinet in the Atlas and Map Collection are explanatory guides for each individual map as well general guides for the series, all of which contain keys to the map symbols.
    • Soils of Coastal Del Norte County, California (McLaughlin and Harradine) 1966 (S 599 U6 C16 Hum Co Coll) Maps agricultural soils at a scale of 1:31,680. Narrative includes both a general and a detailed description of each soil series; physical and chemical data; fertility analysis; and characteristics of Soil-Vegetation Survey Project soils.
    • Soils of Western Humboldt County, California (McLaughlin and Harradine) 1965 (ref S 599 U6 C36) (another copy in Hum Co Coll) Maps agricultural soils at a scale of 1:31,680. Narrative includes both a general and a detailed description of each soil series; physical and chemical data; fertility analysis; and characteristics of Soil-Vegetation Survey Project soils.
  • Soil Series Descriptions and Data
    • California Forest Soils (Laacke) 1979 (SD 390.3 U6 C35) Includes general material and description of 25 forest soil series, many of which are found in northwestern California.
    • Laboratory Data and Descriptions for Some Typical Pedons of California Soils (Allardice) 1983 (3 volumes) (S 599 C2 L32) (Volume II: North Coast is in Humboldt County Collection) Contains laboratory data on California soil series.
    • Official Soil Series Descriptions (U.S. Natural Resources Conservation Service) Database containing detailed descriptions for each of the 19,000 soil series taxa in the United States, including those found in northwestern California. Each description includes information on taxonomic classification, typical pedon description, type location, range in characteristics, competing series, geographic setting, geographically associated soils, drainage and permeability, use and vegetation, distribution and extent, and other remarks.
    • Soil Nutrient Storage for California Wildland Soils: Standard Depts by 1 Foot Intervals to 72 Inches (Colwell and Zinke) 1973 (S 592.16 C65 1973) Contains laboratory analyses of 428 soil profile samples obtained as part of the California Soil-Vegetation Survey. Organized by soil series symbol and covers series 335-992.
    • Soil Series Descriptions and Laboratory Data from Redwood National Park (Popenoe) 1987 (F 868 R4 R58 #20 Hum Co Coll)
    • Soil Series in Northwestern California (U.S. Soil Conservation Service) 1958-1965 (S 599 U6 C12 Hum Co Coll) Series of narrative descriptions of 33 soil series.
    • Wildland Soils and Associated Vegetation of Mendocino County, California (Gardner) 1964 (Cal Doc C 805 S6w) Characterizes the general soil and vegetation characteristics of Mendocino County and describes each of the soil series identified in the State Cooperative Soil-Vegetation Survey Project.

Vegetation


For vegetation maps see Northwestern California Maps--Vegetation

  • CalFlora Database (CalFlora) Provides information on 8,375 currently recognized ferns, conifers and flowering plants in California, including over 800,000 records of plant observations and 20,000 photographs for half of the included species. Access is free from libraries and for those who register as guests. Each entry includes common and scientific nomenclature, plant communities, habitats, elevation, notes on geographic distribution and lifeform, a map of geographic distribution based upon entries in the California Occurrence Library, and photographs if available. Search by common or scientific name, county, lifeform, elevation, plant community, and other parameters.
  • California Vegetation (Holland & Keil) 1995 (QK 149 H64 1995) Intermediate in scope between Ornduff's Introduction to California Plant Life and Barbour's Terrestrial Vegetation of California. Includes chapters on communities found in northwestern California including Coastal Scrub Communities, Coastal Coniferous Forest Communities, and Mixed Evergreen Forest Communities.
  • Centres of Plant Diversity: Klamath-Siskiyou Region (Smithsonian Institution and World Conservation Union) One of six sites identified in North America. Data sheet includes information on geographical setting, flora, vegetation, social and economic values, threats, and conservation efforts.
  • Checklist of the Vascular Plants in Northwestern California (Smith & Sawyer) various editions (print copies available in QK 149 S625 Archives) (Humboldt State University Herbarium Miscellaneous Publication #2) Checklist arranged by family and then species that contains all of the native, naturalized and weedy vascular plants in northwestern California. The most recent edition is available as a MS Word file.
  • Common Names to Genus (Family) (Humboldt State University Herbarium) Lists common names of northwestern California vascular plants and gives their genus and family.
  • Common Wild Flowering Plants of Northwestern California (Popenoe) Contains images of 25 flowering plants.
  • Endemic Vascular Plants of Northwestern California and Southwestern Oregon (Smith and Sawyer) Madrono 31 (1): 54 -69, 1988. (Periodical QK 1 M3) List of endemics provides distribution by county and formal designations of rarity and endangerment for 281 taxa. The most recent checklist is available online from the Humboldt State University Herbarium
  • Field Guide to Port Orford Cedar Plant Associations in Northwest California (Jimerson and Daniel) 1994 (USFS Technical Paper R5-ECOL-TP-2) (QK 494.5 C975 J55 1994)
  • Field Guide to Serpentine Plant Associations and Sensitive Plants in Northwestern California (Daniel and Jimerson) 1995 (USFS Technical Paper R5-ECOL-TP-6) (QK 149 F54 1995 Hum Co Coll)
  • Field Guide to the Forested Plant Associations of Southwestern Oregon (Atzet) 1996 ( USFS Technical Paper R6-NR-ECOL-96-17) (print copy available in QK 182 F541 1996)
  • Field Guide to the Tanoak and the Douglas-fir Plant Associations in Northwest California (Jimerson and Daniel) 1996 (USFS Technical Paper R5-ECOL-TP-9) (QK494.5 F14 J55 1996)
  • Forest Zones of Southwestern Oregon IN Natural Vegetation of Oregon and Washington (Franklin & Dyrness) 1988 (QK 182 F7 1988) (Same work without updated bibliography is available in Docs A 13.88:PNW-8) Covers the mixed evergreen, mixed conifer, Abies concolor and Abies magnifica zones that extend into northwestern California.
  • GAP Analysis of Mainland California: An Interactive Atlas of Terrestrial Biodiversity and Land Management (California GAP Analysis Project) 1995 (Atlas QH 76.5 C2 C34 1995--cd-rom) Provides an assessment of the conservation status of native vertebrate species and natural land cover types in California. Uses medium-scale distribution maps to show 300 dominant plant species, 200 plant communities, predicted distribution of 455 terrestrial wildlife species, 58 wildlife habitat types, and land ownership and management status. Will also display a list of rare or endangered species in a selected 1:24,000 USGS quadrangle. The interactive atlas allows one to make queries, displays, and analyses. Data can be downloaded in Arc/Info export format for use in a local GIS system. Data is available in statewide datasets or in subsets by ecological region. For additional information or to download GIS coverages directly from the Internet see the California GAP Analysis Home Page.
  • Hardwoods of the Pacific Northwest (Niemiec, Ahrens, Willits and Hibbs) 1995 (Oregon State University Forest Research Laboratory Research Contribution 8) (SD 144 A13 R4 #8) Ten-page species accounts include information on the biology, management and processing of 10 Pacific Northwest (western Washington and Oregon, and northwestern California) hardwood species--bigleaf maple, black cottonwood, California black oak, California laurel, giant chinkapin, Oregon ash, Oregon white oak, Pacific madrone, red alder and tanoak.
  • Invasive Weeds of Humboldt County: A Guide for Concerned Citizens (Pickart and Eicher) 2000 (print copy available in SB 612.C2 P53 2000 Hum Co Coll) Contains descriptions and images of 30 unwanted species in Humboldt County
  • Keys to the Families and Genera of Vascular Plants in Northwest California (Smith & Sawyer) 1981 (QK 149 S67 1981 Hum Co Coll) Includes all native and introduced vascular plants in northwestern California. Numbers after each generic name refer to the page in A California Flora by P.A. Munz where species keys and descriptions are found.
  • Macrolichens of the Pacific Northwest (McCune and Geiser) 1997 (QK 587.5.N67 M33 1997) provides great color photographs to help identify the fruticose and foliose lichens occurring in the forests of northern California.
  • Plants of the Coast Redwood Region (Lyons, Cooney-Lazaneo and King) 1988 (QK 149 L95 1988 Hum Co Coll) Popular work containing short descriptions and color photographs organized into five categories--conifers, broadleaf trees, flowers, ferns and exotic (non-native) plants. Covers the redwood forest, mixed evergreen and oak woodland plant communities.
  • Rare, Endangered and Threatened Vascular Plants of Northwest California (Smith) Checklist of species giving family, species, rarity codes, and county where found. The checklist is revised periodically as part of the Humboldt State University Herbarium checklist series.
  • Rare or Uncommon Plants of Northwest California (primarily Humboldt and Del Norte Counties) (Northcoast Chapter of the Native Plant Society) Search by family, habitat or topographic quadrangle. For each plant includes rarity and habitat codes, elevation and blooming times, state and federal listing information, and some photos.
  • Redwood Region Wildflowers (Young) 1989 (QK 149 Y68 1989)
  • Scenic Highlights (California Native Plant Society. North Coast Chapter) Lists places in which to view native flowering plants in northwestern California. Includes a description of the site and a plant species list.
  • Serpentine Plants of Northwestern California (Humboldt State University Herbarium) Checklist of taxa that are more or less restricted to the serpentine substrate or that are found there more commonly than they are anywhere else.
  • Soil and Vegetation Maps of California with an Emphasis on Northwestern California. This HSU Library handout which is available in the Map and Atlas Collection discusses the major vegetation surveys that cover northwestern California.
  • Special Status Plants, Animals and Natural Communities of Humboldt County, Trinity County, Siskiyou County, Mendocino County, Del Norte County (California Department of Fish and Game Natural Diversity Database) 1999. Lists species by scientific name and gives common name and status-federal, California, CDFG and CNPS.
  • Species Lists (US Fish and Wildlife Service. Arcata Fish and Wildlife Office) Database will produce lists of federal endangered, threatened, proposed, and candidate plant and animal species by county (Humboldt, Del Norte, Mendocino, Trinity or Siskiyou), USGS 1:24,000 scale quadrangle map, or federal administrative unit.
  • Terrestrial Vegetation of California (Barbour and Major) 1988 (ref QK 149 T44 & stacks) The standard scholarly treatise on the vegetation types of California including the local types - "Beach and Dune," "Coastal Salt Marsh," "Mixed Evergreen Forest," "Redwood Forest," and "Coastal Prairie & Northern Coastal Scrub." Accompanied by map "Natural Vegetation of California".

Water Resources & Water Quality


For water-related maps see Northwestern California Maps--Water Resources & Water Quality

Weather & Climate


For weather and climate maps of northwestern California see Northwestern California Maps--Weather

  • California Data Exchange Center (CDEC): Humboldt, Del Norte, Siskiyou, Trinity, Mendocino (California Department of Water Resources) Contains real-time and historical operational hydrologic data gathered by state, federal and other cooperating agencies. Presently there are over 800 operational recording stations in California. Data collected includes river stages and flow; precipitation; snow depth and water content; temperature; wind direction and speed; and fuel moisture. Use the CDEC Stations Search or CDEC Geo Atlas to locate stations by geographic location or data type.
  • California Irrigation Management Information System (California Department of Water Resources Office of Water Use Efficiency) Network of automated weather stations, 125 of which are active and 61 inactive, that have been established to assist California irrigators manage water resources efficiently. Data is available on an hourly, daily or monthy basis. Data collected includes solar radiation, air temperature, soil temperature, relative humidity, wind speed, wind direction and precipitation. Data calculated includes net radiation, reference evapotranspiration, wind rose, wind cubed, vapor pressure, and dew point temperature. In northwestern California there are stations in Mendocino and Siskiyou County.
  • California Nevada River Forecast Center (US National Weather Service) Includes precipation data grouped by drainage area for periods covering the past 1, 2, 3, 6, 12, and 24 hours; river stage/flow for the past 5 hours, river flood outlook, and other related data.
  • California Rainfall Summary; Monthly Total Precipitation, 1849-1980 (Goodridge) 1981 (Cal Doc W 765 R34 1980) Microfiche set of monthly and annual records for 4,100 California weather stations. Stations are arranged by drainage province, then by hydrologic unit.
  • California Solar Data Manual (Berdahl) 1978 (Cal Doc E 2015 S641) Includes solar data from Butler Valley Ranch and summary climatic data for Eureka.
  • California Weather Database: Humboldt County, Del Norte County, Siskiyou County, Trinity County, Mendocino County (University of California Statewide Integrated Pest Management Program) Includes daily and hourly data from current stations throughout California plus long-term climate data as far back as 1951.
  • California Wind Atlas (California Energy Commission) 1985 (Cal Doc E 2015 W55) Includes mean monthly wind speeds (Table E) for Arcata and Eureka during periods of record.
  • Climate Data for 40°N 124°W (World Climate) Contains average monthly averages for temperature, precipitation, and other weather data for stations worldwide. Data is taken from government databases. Search by city and then browse neighboring stations using a directional compass.
  • Climate of Humboldt and Del Norte Counties (Elford) 1974 (QC 984 C2 E4 1974 Hum Co Coll & Ref) Contains a narrative summary of the climate of these two counties along with tabular summary data.
  • Climate of Mendocino County (Elford) 1963 (QC 984 C2 C455) Contains a narrative summary of the climate of Mendocino County along with tabular summary data.
  • Climate of Siskiyou County (Elford) 1965 (QC 984 C2 C46) Contains a narrative summary of the climate of Siskiyou County along with tabular summary data.
  • Climate-Radar Data Inventories: Humboldt, Del Norte, Mendocino, Trinity, Siskiyou (US National Weather Service. National Climatic Data Center) For each county lists stations with observation data. Each station includes a station profile and may include the following online data: 15 minute and hourly precipitation data; and daily, monthly, and annual surface data (temperature, precipitation, and snow depth). The Eureka station includes Doppler radar data from 1995 to the present. For other options in locating weather observation stations see Locate Weather Observation Station Record.
  • Direct Normal Solar Radiation Data Manual: Long-term Monthly Mean, Daily Totals for 235 National Weather Service Stations (Knapp and Stoffel) 1982 (SERI/SP 281-1658) (Docs E 1.28:SERI/SP 281-1658) Includes monthly and annual insolation estimates for Arcata.
  • Climatological Data: California (U.S. National Weather Service) Monthly with annual summary (online: 1997 to the present; print: 1950-1997 in Docs C 55.214/6) Contains daily temperature and precipitation data. Stations are grouped by drainage basin, e.g., North Coast. For more recent data see NNDC Climate Data Online.
  • Engineering Weather Data (U.S. National Climatic Data Center and U.S. Air Force Combat Climatology Center) 2000 (Docs C 55.281/2-2 En 3 CD) CD-ROM weather database that emphasizes data needed for building design and construction for heating and cooling systems. Design values, medians, and extremes of dry and wet bulb temperature are included as well as various humidity parameters. Other weather summaries presented in tabular and graphical form include binned temperature data, degree days, solar radiation, and wind roses. Northwestern California stations included among the 800 worldwide stations are Arcata/Eureka, Cresent City and Montague (Siskiyou County). Engineering Weather Data (Kjelgaard) 2001 (Ref TH 7015 K54 2001) contains similar data for fewer stations.
  • Local Climatological Data: Eureka (U. S. National Weather Service) Monthly (Humboldt County Collection pamphlet collection under "Climate - Eureka") In two parts, the "Monthly Summary" includes daily information on temperature, precipitation, degree days, wind, sunshine and sky cover; the second part is an "Annual Summary with Comparative Data." See Eureka, California: Normals, Means and Extremes (Western Regional Climate Center) for a multi-year summary.
  • Northern California Buoy Data (Scripps Research Institute) Contains links to real time and historical offshore buoy data from the National Data Buoy Center. Includes data on wind, wave, atmospheric pressure, air temperature, and water temperature.
  • NNDC Climate Data Online (U.S. National Climatic Data Center) Database of recent and historical global climate data that includes daily and monthly temperature and precipitation data for most stations; and hourly and 15' precipitation for selective stations. The dates of available data vary from station to station and on the type of data. For example, daily temperature and precipation data for Eureka extends back to 1941. For northwestern California there are 22 stations in Humboldt County, 9 in Del Norte County, 34 in Siskiyou County, 12 in Trinity County, and 20 in Mendocino County. Stations vary in their period of record. The user interface allows one to select by country, state, county and station. Results of a query are posted to a custom web page in an html format for online viewing and an ASCII comma deliminted format for spreadsheet or database use. For additional information see NOAA National Data Center Climate Online For Use in Research, Applications and Education.
  • Northern California Climate Summaries (Western Regional Climate Center) Contains summary temperature and precipitation information covering multiyear periods for individual stations in northern California. Includes approximately 40 northwestern California stations.
  • Northern California Rainfall Data (Alden & Harper) 1995 (QC 925.1 U8 C22 1995 Hum Co Coll) Includes monthly and annual precipitation data for 58 stations in Humboldt County plus Crescent City. Period of record is from the earliest date (many start in 1980) to 1994.
  • Water Data Library (California Department of Water Resources) When completed will include hydrologic data in four areas: surface water measurement, water quality, groundwater levels, and climatology. Presently water quality data and groundwater level data are available. In California precipitation data was first collected in 1849, stream gage data in 1878, and the measurement of groundwater levels in the early 1900's. The Water Data Library contains data collected by the California Department of Water Resources and cooperating agencies and previously made available in several print series and in the Water Data Information System legacy computer system. Index to Sources of Hydrologic Data (California Department of Water Resources Bulletin 230) (Cal Doc W 750 B9 #230) contains a comprehensive list of hydrologic data stations through 1981. The data complements hydrologic data available from the U.S. Geological Survey and the National Weather Service/National Climatic Data Center. The HSU Library has the following data compilations issued as California Department of Water Resources Bulletins: