Sap Flow Measurements for Trees at Terrace, Forest, and Treeline Sites, 2010-2012

Hourly sap flow estimates for trees during snow-free seasons provide data on water transport dynamics. Measurements were collected from 2010 to 2012 at three distinct site types using Dynamax thermal dissipation probes installed at specific depths. The data, sourced from NASA EarthData and the organization SCIOPS, quantifies flow in liters per square decimeter of sapwood area per hour.

Use Cases

• Modeling tree water use and transpiration rates based on hourly sap flow data.
• Comparing water transport dynamics across different ecological sites (terrace, forest, treeline).
• Calibrating or validating thermal dissipation probe methods for sap flow measurement.
• Analyzing seasonal and diurnal patterns of sap flow during snow-free periods.

Strengths

• Hourly temporal resolution provides detailed diurnal patterns.
• Measurements span three consecutive years (2010-2012).
• Data collection uses a standardized method (Dynamax TDP 30 probes) with specified installation depths.

Limitations

• Data is limited to snow-free seasons, missing winter physiology.
• Row count and column definitions are unknown, limiting suitability assessment.
• Last updated 2012-09-17 23:59:59.999000; freshness should be verified.

Provenance

Source

NASA EarthData, organization SCIOPS

Collection Method

Measurements made using Dynamax thermal dissipation probes (TDP 30) with heater at 2.5 cm depth and thermocouples at 1.0 cm beneath bark.

Time Range

2010-2012 (snow-free seasons)

Freshness

Last updated 2012-09-17 23:59:59.999000

Geography

Terrace, forest, and treeline sites (specific locations not provided).