output	editor_options
html_document keep_md true	chunk_output_type console

eco-das XIII stoichiometry

Files

• get_nars_links.R - webscraping to get data links from table on EPA website. Makes nars_data_table.csv
• data-download.Rmd - download or read in files from NARS data and example map
• wetlands.Rmd - read in data from wetland 2011 survey

Data Overview

NARS Surveys:

1. Lakes (2007)
2. Lakes (2012)
3. Streams (2004-2005)
4. Rivers and Streams (2008-2009)
5. Wetlands (2011)
6. Coastal (1999-2001, 2005-2006)
7. Coastal (2010)

Notes on outcome and driver variables of interest

Wetlands

• Water Chemistry - UID, DATE_COL, SITE_ID, TN, TN_USEABILITY, TP, TP_USEABILITY
• Soil Chemistry - UID, SITE_ID, DATE_COL, TOT_CARBON, TOT_CARBON_FLAG, TOT NITROGEN, TOT_NITROGEN_FLAG
• Landscape Data - metrics within 100, 200, 500 or 1000m buffers. NLCD 2001 and 2006 but not 2010.

TN is in mg N/L TP is in ug P/L

Rivers 2008-2009

• Water Chemistry - UID, SITE_ID, DATE_COL, DOC, DOC_ALERT, NTL, NTL_ALERT, PTL, PTL_ALERT

Lakes 2012