Hot Spots in a Cold Land

Hot Spots in a Cold Land

This blog post was co-authored by Dr. Julia Boike and her team (AWI) and Zhila Rashidi (Eosense) Polygonal ponds in Siberian permafrost and their effect on CO2 emissions The Lena River Delta in northern Yakutia, northeast Siberia, Russia, is one of the largest catchment areas (2,430,000 km2) in the Arctic. The bed of Lena Delta […]

Biases of Temporally Sparse Data and Measurement Scheduling on Flux Estimates: Part 3

Part three of the three part series. Here are Part 1 and Part 2. Download the complete article (PDF). EVENT-DRIVEN EMISSIONS Some gas species such as N2O typically follow low emission seasonal baselines¬†with occasional dramatic pulses due to strong rain or treatment effects (Millar and Robertson, 2014; Butterbach-Bahl et al., 2004). Often the non-event sections […]

Biases of Temporally Sparse Data and Measurement Scheduling on Flux Estimates: Part 2

Biases of Temporally Sparse Data and Measurement Scheduling on Flux Estimates: Part 2

Part two of the three part series. Here is Part 1. Periodic Emissions with Events The discussion so far has focused on how measurement scheduling can influence the observation of a periodic and (relatively) predictable flux time-series, driven almost entirely by diurnal temperature variation. We will now look at how these measurement effects can change […]

Biases of Temporally Sparse Data and Measurement Scheduling on Flux Estimates: Part 1

Biases of Temporally Sparse Data and Measurement Scheduling on Flux Estimates: Part 1

Part one of a three part series. While collecting samples/measurements in the same order, at the same time every day is convenient, it can seriously bias your findings. This article offers a look at how to avoid some schedule-induced issues when measuring ecosystem variables. Introduction Estimates of baseline and event-driven greenhouse-gas (GHG) emissions from soils […]

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