Welcome to CARD 2.0
USER NOTE, November 13, 2019: We have identified a recurring issue in the CARD system. Errors of different forms were appearing, which we have traced to a server capacity problem. This is being upgraded and will be fixed in a few days at most. Thanks for your patience - Andrew
December 18, 2019. Update: We have fixed the server issue and this seems to have resolved most of the data errors - however, please let me know if you encounter any issues. We are still having trouble with inconsistencies in the map display. We are working on a fix. Thanks for your continued patience - Andrew
January 14, 2020. Update: We have identified a key source of errors in the system. When import files include duplicate values for the "Site Identifier" field, the system sometimes incorrectly assigns these dates to the wrong site. We are working on a software solution. We are also reviewing import files and re-uploading data that fixes these errors. If you submit data for upload, please use correct site identifiers (these are normally assigned by government heritage management offices) or leave the field blank - Andrew
The Canadian Archaeological Radiocarbon Database (CARD) is a compilation of radiocarbon measurements that indicate the ages of samples primarily from archaeological sites in North America. CARD also includes samples from paleontological and geological contexts. We are slowly expanding our coverage into Central and South America. These data represent a significant investment and resource for researchers interested in human history and its context.
CARD was created by Dr. Richard "Dick" Morlan of the Canadian Museum of History (formerly the Canadian Museum of Civilization), and its existence is a product of his genius and labour. In July, 2014 the Canadian Museum of History (CMH) and the Laboratory of Archaeology (LOA) at the University of British Columbia formed a partnership to revise and update the CARD platform. This current version of CARD (2.0) adds useful new features, including unlimited batch uploading/downloading of data and spatial/map visualization. However, the core of CARD remains the c14 dates painstakingly submitted by researchers across the world and compiled by Dick. We hope that this revision maintains the relationship that Dick established in one of the first crowd-sourced, big data endeavors: CARD provides utility and comprehensiveness and in exchange, researchers provide us with dates. See the HELP tab for more information and instructions on using CARD.
Our efforts to update and upgrade CARD are just beginning, and we are moving in two directions: to increase the quantity and quality of CARD data and to improve the functionality of the CARD platform. We are looking for partners to assist us in both. CARD data contains some errors and is in some cases incomplete, and we are engaged in a long-term process of scrubbing the data. We are also developing new functional tools to make CARD more valuable to researchers including the generation of heat-maps of date concentrations over time, and the selection of data via a map interface. We also have longer-term plans to add calibration sockets with existing calibration services. If you have 14C data, please upload it to CARD. If you are interested in getting involved in the expansion and development of CARD, please email us at email@example.com.
Radiocarbon assessment has an effective range of about 250 to +50,000 years, and as a result most of the samples in CARD are associated with Indigenous archaeological sites. These represent a significant resource into aboriginal history. CARD fuzzes location data for public visitors to the database at 1:2,000,000 scale. Accessing CARD's full capabilities requires a security-account available only to researchers at accredited institutions.
As Dick wrote in CARD 1.0, "The long term future of this database will depend upon whether or not the archaeological community finds it truly useful." We hope you do.