watersheds

Annual estimates of the water budget for the Ipswich River watershed, 1931 to 2018

Abstract: 

Annual estimates of the water budget for the Ipswich River watershed, 1931 to 2018. The water budget includes precipitation, evapotranspiration, stream flows, water withdrawals, sewer export and public water supply imports.

Core Areas: 

Data set ID: 

223

Keywords: 

Short name: 

WAT-IP-HistoricalWaterBudget

Purpose: 

 

Data sources: 

WAT-IP-HistoricalWaterBudget_csv
WAT-IP-HistoricalWaterBudget_xls

Methods: 

The water budget was reconstructed for the period of discharge record for the Ipswich River watershed, Massachusetts.  Methods are summarized in Claessens et al. 2006.  Data through 1999 are from Claessens et al. 2006.  Data for 2000 through 2008 are updated using precipitation collected at the PIE LTER rain gage in Byfield, Newbury MA, and water withdrawal summarized in Wollheim et al. 2013. From 2008 to 2014, we have updated precipitation and stream flow only, because of difficulties in gainging water withdrawal data. 

Briefly, precipitation for 1931-2000 was estimated from interpolated  precipitation gages in and surrounding the Ipswich and Parker River watersheds, while for 2001 through 2018 precipiation was updated using precipiation amounts from the PIE LTER rain gage (see PIE LTER Climate data).  Discharge was calculated from USGS gage data at the Ipswich gage at Ipswich (#01102000).  Water supply source, public water export, and amount of sewage exported are based on town level tabular information compiled over time for towns within the basin.  All sewage water is exported from the basin, as there are no sewage treatment plants in the basin.  ET was calculated by difference (PPT-RO-netExport).  For more details see Claessens et al. 2006

All variables were standardized as depth of water per year (mm/yr) to construct the budget, using the area of the Ipswich River watershed (404 km2).  That is, total volume of water per time was divided by watershed area and converted to mm/yr.

Claessens, L., C. Hopkinson, E. Rastetter, and J. Vallino. 2006. Effect of historical changes in land use and climate on the water budget of an urbanizing watershed. Water Resources Research 42:W03426.

Wollheim, W.M, M.B. Green, C.S. Hopkinson, B.A. Pellerin, N.B. Morse. 2013. Impacts of ecosystem service regionalization on a suburban New England watershed.  Estuaries and Coasts. DOI 10.1007/s12237-013-9646-8

Maintenance: 

On-going study, data continue to be added/updated

Version 01, 23Mar2012, data and metadata update. Used MarcrosExportEML_HTML (working)pie_excel2007.xlsm 3/23/2012 10:01 AM for QA/QC to EML 2.1.0
Version 02: April 18, 2013, data and metadata updated to comply with importation to Drupal and LTER PASTA. Research location name and description checked updated.Used MarcrosExportEML_HTML (working)pie_excel2007.xlsm 3/14/13 12:02 PM for QA/QC to EML 2.1.0
Version 03: February 9, 2016, updated data and metadata through 2014 to comply with importation to Drupal and LTER PASTA. Used MarcrosExportEML_HTML (working)pie_excel2007_Jan2015.xlsm 1/15/15 4:26 PM for QA/QC to EML 2.1.0
Version 04: February 9, 2016, updated data and edited metadata through 2014 to comply with importation to Drupal and LTER PASTA. Used MarcrosExportEML_HTML (working)pie_excel2007_Jan2015.xlsm 1/15/15 4:26 PM for QA/QC to EML 2.1.0
Version 05: July 11, 2019, data and metadata updates to comply with importation to DEIMS7 and LTER Data Portal. Used MarcrosExportEML_HTML (working)pie_excel2007_Jun2019.xlsm 6/7/19 12:58 PM for QA/QC to EML 2.1.0
 

 

 

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