Secondary Sources Of Data - Where Do You Go?
The most common source of secondary data is data collected by government agencies. Though there are also databases available from non-govermental agencies. Below is a list of possible source:
- Weather data: NOAA national climatic data center (http://www.ncdc.noaa.gov/ ), NRCS National Water and Climate Center (http://www.wcc.nrcs.usda.gov/ ); California (http://www.ipm.ucdavis.edu/WEATHER/index.html#WEATHERDATA ); Washington State (http://weather.wsu.edu/awn.php); USPEST.org (http://uspest.org/wea)
- Pesticide use data: California department of pesticide regulation (cdpr.ca.gov/docs/pur/purmain.htm), National Agricultural Statistics Service Agricultural Chemical Use Program (http://www.nass.usda.gov/Surveys/Guide_to_NASS_Surveys/Chemical_Use/ )
- US gricultural production statistics: USDA Census of Agriculture (http://www.agcensus.usda.gov/ ); USDA Economic Research Service(http://www.ers.usda.gov/ )
- Demographic data: Census Bureau American Community Survey (http://www.census.gov/acs/www/), Office of Planning, Research & Evaluation(http://www.acf.hhs.gov/programs/opre )
- Worker safety and protection statistics: Bureau of Labor Statistics (http://www.bls.gov/iif/oshsum.htm )
- Health impacts associated with pests and pest management: Center for Disease Control and Prevention (http://www.cdc.gov/ ), General Accountability Office (www.gao.gov)
- Environmental data: EPA (http://www.epa.gov/waters/ir/), USGS (http://water.usgs.gov/owq/data.html), NRCS (http://websoilsurvey.nrcs.usda.gov/app/HomePage.htm)
- Education statistics: National Center for Education Statistics (http://nces.ed.gov/ ), National Household Education Survey (http://nces.ed.gov/nhes/ ), Office of Planning, Research & Evaluation (http://www.acf.hhs.gov/programs/opre )
- Consumer data: Data.gov (http://www.data.gov ), National survey of families and households (http://sodapop.pop.psu.edu/ ), Office of Planning, Research & Evaluation (http://www.acf.hhs.gov/programs/opre ), Panel Study of Income Dynamics (http://psidonline.isr.umich.edu/ )
Additionally, there are also many “hidden” sources of data that may be accessible with a little searching:
- Your colleagues—send out a request to your colleagues asking if they have any data you can use. There is a lot of data collected that doesn’t end up being used for the intended purpose, but could be perfect for your project!
- Post question/request for info on listserv—Use your connections outside of your colleagues to request data, take advantage of professional organizations and communication networks.
- Twitter or Facebook request—There are people who may not open an e-mail, but they take the time to read a 140 character tweet.