CRU TS3.1 climate dataset processing (Plantae)

Knowledge graph centered on CRU TS3.1 climate dataset processing (Plantae) with 70 nodes and 148 connections. Top connected: Plot-scale evidence of tundra vegetation change an, climatological variability, Winter snowpack, Organic matter decomposition, Temperature.

Method synopsis

Processing of gridded climate data from the CRU TS3.1 dataset with lapse rate adjustment for elevation differences between grid cells and actual study locations, validated against local meteorological data.

Synthesized from method descriptions across 4 papers using this protocol.

Procedure from a recent peer-reviewed implementation

Steps below were extracted from the most recent peer-reviewed implementation of this protocol in the corpus — Plot-scale evidence of tundra vegetation change and links to recent summer warming (2012), Nature Climate Change. Implementations in other papers (listed below) may differ.

1. Obtain climate data
   Monthly data provided at 0.5 degree resolution based on the University of East Anglia Climate Research Unit (CRU) TS3.1 dataset, with a lapse rate adjustment of -6°C/km elevation to account for differences in elevation between the actual study sites and the gridded data. Local meteorological data were available for at least some years for ~2/3 of the studies to confirm accuracy of downscaled data.
   Quantities: 46 unique 0.5 x 0.5 degree grid cells, lapse rate adjustment of -6°C/kmDuration: Data extending through year 2009Conditions: 0.5 degree resolution with elevation adjustment
   Equipment: CRU TS3.1 climate dataset, local meteorological stations for validation
2. Calculate summer temperature change index
   For each study, summer temperature change (Δ°C) was calculated by first determining an annual rate of summer temperature change (°C/year) as the slope of a linear regression of summer temperature on year over the relevant time period. The annual rate was then multiplied by number of years between the first and last survey year in each study to generate 158 study-specific estimates of total summer temperature change.
   Quantities: 158 study-specific temperature change estimatesDuration: Based on first through last year of vegetation monitoring in each studyConditions: Linear regression over study period
   Equipment: Statistical software for regression analysis

Typical Equipment

• CRU TS3.1 climate dataset
• local meteorological stations

Output Measurements

• site-specific temperature data
• summer temperature change

Papers Using This Protocol (4)

Species Studied With This Protocol

Places Where Used