Data Package Metadata View Summary

Chemistry of stream water from the Luquillo Mountains

General Information

Data Package:
Local Identifier:	knb-lter-luq.20.4923115
Title:	Chemistry of stream water from the Luquillo Mountains
Alternate Identifier:	DOI PLACE HOLDER
Abstract:	Stream water is collected weekly at the Luquillo Mountain sites listed below. These data sets begin as early as 1983; LTER sampling began in 1988. Stream water samples are grab samples taken from the water/air interface at stream channel center on the sampling day (usually Tuesdays). A continuous record of stream stage (height) is recorded by a datalogger at all ongoing stream sampling sites. Average daily streamflows are available from the USGS and at other locations (Hydrology and Meteorology) on this site. All samples are measured for pH and conductivity, and then filtered (pre-combusted Whatman GF/F glass fiber filter) prior to further analysis. From 1983-1994 samples were cooled and returned to the San Juan chemistry laboratory for analysis. During those years, samples for NH4 and NO3 analyses were refrigerated continuously until analysis. Subsamples for NH4 analysis were also preserved with 1 molar H2SO4. From 1994 on, samples for NH4 and NO3were frozen until analysis, were not acidified, and all analyses were conducted at the University of New Hampshire. Stream water Sampling SitesDescriptions of LTER LUQ stream water weekly sample chemistry data from 1988 onwards. Chemical concentrations are recorded as mg/L or mg/L as appropriate. Values below detection limits are recorded as 1/2 the detection limit. Site Abbreviation Description Comments Quebrada Sonadora QS El Verde stream. Quebrada Toronja QT = QT1 El Verde stream. Rio Espiritu Santo RES4 LEF North Stream LEF= Luquillo Experimental Forest Quebrada Prieta A QPA El Verde stream Quebrada Prieta B QPB El Verde stream Quebrada Prieta QP El Verde stream Puente Roto Mameyes MPR Bisley stream Previously "PRM" Quebrada uno-Bisley Q1 . Bisley stream Quebrada dos-Bisley Q2 Bisley stream Quebrada tres-Bisley Q3 . Bisley stream Rio Mameyes Gage MG Bisley stream Rio Icacos RI LEF South stream Rio Sabana RS LEF West stream Quebrada Guaba QG Icacois stream
Publication Date:	2010-03-22
Language:	English

Time Period

Begin:

1983-05-24

End:

2016-12-27

People and Organizations
Contact:	McDowell, William H. [ email ]
Creator:	McDowell, William H.
Associate:	Melendez-Colom, Eda (University of Puerto Rico, Rio Piedras Campus, data manager)
Associate:	Schaefer, Douglas Allen
Associate:	Scatena (In Memorium), Frederick

Data Entities
Data Table Name:	Quebrada uno-Bisley (Q1) Chemistry Data
Description:	Quebrada uno-Bisley (Q1) Chemistry Data
Data Table Name:	Quebrada dos-Bisley (Q2) Chemistry Data
Description:	Quebrada dos-Bisley (Q2) Chemistry Data
Data Table Name:	Quebrada tres-Bisley (Q3) Chemistry Data
Description:	Quebrada tres-Bisley (Q3) Chemistry Data
Data Table Name:	Quebrada Guaba (QG) Chemistry Data
Description:	Quebrada Guaba (QG) Chemistry Data
Data Table Name:	Quebrada Prieta A (QPA) Chemistry Data
Description:	Quebrada Prieta A (QPA). Collection of water samples from this location ended in 10/19/1999.
Data Table Name:	Quebrada Prieta B (QPB) Chemistry Data
Description:	Quebrada Prieta B (QPB). Collection of water samples from this location ended in 9/23/1997.
Data Table Name:	Quebrada Prieta (QP) Chemistry Data
Description:	Quebrada Prieta (QP) Chemistry Data
Data Table Name:	Quebrada Sonadora Chemistry Data
Description:	File structure for rainfall and streams chemistry files for Quebrada Sonadora (QS)
Data Table Name:	Rio Mameyes Gage (MG) Chemistry Data
Description:	Rio Mameyes Gage (MG) Chemistry Data. Collection of water samples from this location ended in 2/23/2010.
Data Table Name:	Rio Icacos (RI) Chemistry Data
Description:	Rio Icacos (RI) Chemistry Data
Data Table Name:	Puente Roto Mameyes (MPR) Chemistry Data
Description:	Puente Roto Mameyes (MPR) Chemistry Data
Data Table Name:	All Sites Basic Field Stream Chemistry Data
Description:	All sites basic field data from stream water samples

Detailed Metadata

Data Entities

Data Table

Data:

https://pasta-s.lternet.edu/package/data/eml/knb-lter-luq/20/4923115/6e00fe7811c8fa5ea3919e6ae02775f1

Name:

Quebrada uno-Bisley (Q1) Chemistry Data

Description:

Quebrada uno-Bisley (Q1) Chemistry Data

Number of Records:

1542

Number of Columns:

Time Period

Begin:

1986-05-27

End:

2015-02-24

Table Structure

Object Name:

QuebradaCuenca1-Bisley.csv

Size:

199918

Text Format:

Number of Header Lines:

Number of Foot Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:

Table Column Descriptions

Watershed or Collector's location

Sample Code

Sample Date

Sample Time

Gage height

Temperature of water sample

pH Electrometric with combination electrode

Conductivity

Chloride

Nitrate

Sulfate

Sodium

Potassium

Magnesium

Calcium

Ammonium Nitrogen

Phosphate

Dissolved organic carbon

Dissolved Inorganic Carbon

Total Dissolved Nitrogen

thiamin diphosphate

Silica

Dissolved Organic Nitrogen

Total Suspended Sediments

Column Name:

Sample_ID

Code

Sample_Date

Sample_Time

Gage_Ht

Temp

Cond

NO3

SO4-S

NH4-N

PO4-P

DOC

DIC

TDN

TDP

SiO2

DON

TSS

Definition:

Watershed or Collector's location where the sample is taken

Numeric code of sample assigned at ITES

Date when the sample was collected

Time where sample was collected in the field

The height of the water surface above the gage datum (zero point) at sampling time (in meters)

Temperature of the sample collected

pH (Electrometric with combination electrode)

Conductivity (Conductivity bridge in micromho/cm )

Chloride (up to 1989 by automated colorimetric analysis (thiocyanate); after 1989 by liquid chromatography with conductivity detection) in ug Cl/L

Amount of dissolved nitrate in the stream water in micrograms nitrogen per liter (ug N/L)

Sulfate (Liquid chromatography; conductivity detection) in mg/L

Sodium (up to 1994 by atomic absorption spectroscopy; after 1994 by ion chromatography with conductivity detection) in mg/L

Potassium (up to 1994 by atomic absorption spectroscopy; after 1994 by ion chromatography with conductivity detection) in ug N/L

Magnesium (up to 1994 by atomic absorption spectroscopy; after 1994 by ion chromatography with conductivity detection) in mg/L

Calcium (up to 1994 by atomic absorption spectroscopy; after 1994 by ion chromatography with conductivity detection) in mg/L

Ammonium Nitrogen[automated colorimetric analysis (phenolhypochlorite)] in ug N/L

Phosphate [automated colorimetric analysis (molybdate blue)] in ug P/L

Amount of dissolved organic carbon in the stream water ion micrograms carbon per liter (ug C/L)

Dissolved Inorganic Carbon [by syringe stripping and infrared spectroscopy (Stainton 1973).] inmg C/L

Total Digestible Nutrients (prior to 1998 by persulfate oxidation and automated colorimetric analysis; after 1998 by high temperature catalytic oxidation with chemiluminescent detection) inmg N/L

thiamin diphosphate (by persulfate digestion followed by automated colorimetric analysis) in ug P/L

Silica [automated colorimetric analysis (molybdate blue)] in mg SiO2/L

Dissolved Organic Nitrogen (by difference (TDN - NO3-N - NH4-N)) in mg N/L

Total Suspended Sediments in mg/L

Storage Type:

string

date

Measurement Type:

nominal

ratio

dateTime

ratio

Measurement Values Domain:

Definition

Watershed or Collector's location where the sample is taken

Unit	dimensionless
Type	real

Format	DD/MM/YYYY
Precision

Unit	dimmessionless
Type	real

Unit	meter
Type	real

Unit	Celsius
Type	real

Unit	dimensionless
Type	real

Unit	microomhn/cm
Type	real

Unit	microgramsPerLiter
Type	real

Unit	microgramsPerLiter
Precision	0.1
Type	real

Unit	milligramsPerLiter
Type	real

Unit	milligramsPerLiter
Precision	0.01
Type	real

Unit	milligramsPerLiter
Type	real

Unit	milligramsPerLiter
Type	real

Unit	milligramsPerLiter
Type	real

Unit	microgramsPerLiter
Type	real

Unit	microgramsPerLiter
Type	real

Unit	microgramsPerLiter
Precision	0.01
Type	real

Unit	milligramsPerLiter
Type	real

Unit	milligramsPerLiter
Type	real

Unit	microgramsPerLiter
Type	real

Unit	milligramsPerLiter
Type	real

Unit	milligramsPerLiter
Type	real

Unit	milligramsPerLiter
Type	real

Missing Value Code:

Code	-9999.00
Expl	Missing Value

Code	-9999
Expl	Missing Value

Code	-9999.00
Expl	Missing Value
Code	BLANK
Expl	Missing Value

Code	-9999.00
Expl	Missing Value

Code	-9999.00
Expl	Missing Value

Code	-9999.00
Expl	Missing Value

Code	-9999.00
Expl	Missing Value

Code	-9999.00
Expl	Missing Value

Code	-9999.00
Expl	Missing Value

Code	-9999.00
Expl	Missing Value

Code	-9999.00
Expl	Missing Value

Code	-9999.00
Expl	Missing Value

Code	-9999.00
Expl	Missing Value

Code	-9999.00
Expl	Missing Value

Code	-9999.00
Expl	Missing Value

Code	-9999.00
Expl	Missing Value

Code	-9999.00
Expl	Missing Value

Code	-9999.00
Expl	Missing Value

Code	-9999.00
Expl	Missing Value

Code	-9999.00
Expl	Missing Value

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table

Data:

https://pasta-s.lternet.edu/package/data/eml/knb-lter-luq/20/4923115/bae8ee76ac8e810f1ce80b14630d707d

Name:

Quebrada dos-Bisley (Q2) Chemistry Data

Description:

Quebrada dos-Bisley (Q2) Chemistry Data

Number of Records:

1533

Number of Columns:

Time Period

Begin:

1986-05-20

End:

2015-02-24

Table Structure

Object Name:

QuebradaCuenca2-Bisley.csv

Size:

198214