Andrews Forest Data Web Site

HF030

Attributes in entity 1: Precipitation water isotopes		Details
1. DBCODE Definition: FSDB Database Code Domain: enum
2. ENTITY Definition: Entity number Units: number Domain: range (minimum = 1. maximum = 1.)
3. SAMPLE_DATE Definition: Date of sample collection in the field Units: date as date type Domain: range (minimum = Sep 26 2006 maximum = Dec 19 2006)
4. SAMPLE_TIME Definition: Approximate time of sample collection in the field (Pacific Standard Time) Domain: freetext
5. SITE Definition: B(ottom of the watershed) = Vegplot #25, T(op of the watershed) = landing at the top of WS10 Domain: enum
6. BOTTLE_NO Definition: Bottle sequence from precipitation collector - up to 12 bottles with an overflow bottle (#13). See SOP? Units: number Domain: range (minimum = 1. maximum = 17.)
7. VOL Definition: Volume of water (ml) collected - set to approximately 5mm of precipitation, but depending on seals and set up, volumes varied Units: milliliters Domain: range (minimum = 5. maximum = 1700.)
8. CORR_PRECIP Definition: Calculation of precipitation amount (mm) from corresponding tipping bucket, and tip numbers Units: millimeters Domain: range (minimum = 0.3 maximum = 94.4)
9. BOTTLE_FILL_TIME Definition: Estimated time bottle was filled based on time stamp from tipping bucket data Units: date as datetime type Domain: range (minimum = Sep 14 2006 8:36PM maximum = Dec 19 2006 1:30PM)
10. DELTA2H Definition: Delta-2H isotopic ratio (2H/1H) of the sample (relative to the Vienna Standard Mean Ocean Water (VSMOW)) Units: permil Domain: range (minimum = -174.126 maximum = -26.800)
11. DELTA18O Definition: Delta-18O isotopic ratio (18O/16O) of the sample (relative to the Vienna Standard Mean Ocean Water (VSMOW)) Units: permil Domain: range (minimum = -23.242 maximum = -3.703)
12. D_EXCESS Definition: d-excess = DELTA2H - 8DELTA18O Units:* permil Domain: range (minimum = -1.861 maximum = 27.305)
13. SAMPLE_ID Definition: EPA ISIRF laboratory ID # Domain: freetext
14. NOTES Definition: Notes about sample from the field Domain: freetext