Table 2 The relationship between the ‘episodicity’ of each study location and the minimum sampling frequency needed to meet a given accuracy.

From: Sampling frequency affects estimates of annual nitrous oxide fluxes

Location

 

Minimum sampling frequency

Episodicity

10% accuracy

0% accuracy

Wongan Hills, Australia.

Extreme

Daily

Daily to 3 days a week

Cunderdin, Australia.

High to Extreme

Daily or 3 days a week

Daily to weekly

Xilin, Inner Mongolia.

Extreme

3 days a week

Weekly

Höglwald, Germany.

High

3 days a week

Weekly to bi-weekly

Kingsthorpe, Australia.

High to Extreme

Daily

Daily

Mooloolah Valley, (Pasture) Australia.

High

Daily to 3 days a week

3 days a week to weekly

Mooloolah Valley, (Rainforest) Australia.

Moderate

3 days a week

Bi-weekly

Mooloolah Valley, (Tree crop) Australia.

Moderate

3 days a week

Weekly

Bellenden Ker, Australia.

Moderate

Weekly

Bi-weekly

  1. Episodicity determined using coefficient of the mean daily flux (Table 1). Moderate, CV > 50–100%; high, CV > 100–200%; extreme, CV > 200%.