3.17.1. CNR1

3.17.1.1. Introduction

The CNR1 is a net radiometer manufactured manufactured by Kipp and Zonen. It measures four components of radiation (shortwave and longwave both upwards and downwards). It works by having two pyranometers and two pyrgeometers, with one of each facing both upwards and downwards.

3.17.1.2. Manufacturer and Model

Model

Brand

Type

CNR1

Kipp & Zonen

Net Radiometer

3.17.1.3. Output definitions

Ouput definition ID

File Identifier

Level Number

QAQC notes

File time resolution

CNR1

CNR1_%SITE

0

No_QAQC

1min

CNR1

CNR1_%SITE

0

No_QAQC

15min

CNR1

CNR1_%SITE

0

No_QAQC

5sec

CNR1

CNR1_%SITE

1

Thresholds_applied

1min

CNR1

CNR1_%SITE

1

Thresholds_applied

15min

CNR1

CNR1_%SITE

1

Thresholds_applied

5sec

3.17.1.4. Processing code

Code used to process raw data: https://github.com/Urban-Meteorology-Reading/Operations-Radiometers

3.17.1.5. Variables measured by instrument

Table 3.15 Variables measured - sorted alphabetically

Variable ID

Full Name

Unit

Lower Threshold

Upper Threshold

Files present (Output definition ID,Level No,Time resolution)

albedo

bulk_surface_albedo

dimensionless

0.0

1.0

CNR1,0,1min CNR1,0,15min CNR1,0,5sec CNR1,1,1min CNR1,1,15min CNR1,1,5sec

FLAG

Status flag

N/A

CNR1,1,1min CNR1,1,15min CNR1,1,5sec

Kdn

incoming_shortwave_radiation

W.m-2

0.0

1200.0

CNR1,0,1min CNR1,0,15min CNR1,0,5sec CNR1,1,1min CNR1,1,15min CNR1,1,5sec

Kup

outgoing_shortwave_radiation

W.m-2

CNR1,0,1min CNR1,0,15min CNR1,0,5sec CNR1,1,1min CNR1,1,15min CNR1,1,5sec

Ldn

incoming_longwave_radiation

W.m-2

100.0

600.0

CNR1,0,1min CNR1,0,15min CNR1,0,5sec CNR1,1,1min CNR1,1,15min CNR1,1,5sec

Lup

outgoing_longwave_radiation

W.m-2

200.0

750.0

CNR1,0,1min CNR1,0,15min CNR1,0,5sec CNR1,1,1min CNR1,1,15min CNR1,1,5sec

nSamples

nSamples

samples/interval

CNR1,0,1min CNR1,0,15min CNR1,0,5sec CNR1,1,1min CNR1,1,15min CNR1,1,5sec

Qstar

net_allwave_radiation

W.m-2

-850.0

1600.0

CNR1,0,1min CNR1,0,15min CNR1,0,5sec CNR1,1,1min CNR1,1,15min CNR1,1,5sec

sd_albedo

standard_deviation_bulk_surface_albedo

dimensionless

CNR1,0,1min CNR1,0,15min CNR1,0,5sec CNR1,1,1min CNR1,1,15min CNR1,1,5sec

sd_Kdn

incoming_shortwave_radiation

W.m-2

CNR1,0,1min CNR1,0,15min CNR1,0,5sec CNR1,1,1min CNR1,1,15min CNR1,1,5sec

sd_Kup

standard_deviation_Kup

W.m-2

CNR1,0,1min CNR1,0,15min CNR1,0,5sec CNR1,1,1min CNR1,1,15min CNR1,1,5sec

sd_Ldn

standard_deviation_Ldn

W.m-2

CNR1,0,1min CNR1,0,15min CNR1,0,5sec CNR1,1,1min CNR1,1,15min CNR1,1,5sec

sd_Lup

standard_deviation_Lup

W.m-2

CNR1,0,1min CNR1,0,15min CNR1,0,5sec CNR1,1,1min CNR1,1,15min CNR1,1,5sec

sd_Qstar

standard_devation_net_allwave_radiation

W.m-2

CNR1,0,1min CNR1,0,15min CNR1,0,5sec CNR1,1,1min CNR1,1,15min CNR1,1,5sec

sd_T_CNR

standard_deviation_T_CNR1_C

Celsius

CNR1,0,1min CNR1,0,15min CNR1,0,5sec CNR1,1,1min CNR1,1,15min CNR1,1,5sec

sd_T_CNR_K

Standard deviation air temperature CNR body temperature Kelvin

Kelvin

CNR1,0,1min CNR1,0,15min CNR1,0,5sec CNR1,1,1min CNR1,1,15min CNR1,1,5sec

T_CNR

CNR_body_temperature

Celsius

-30.0

100.0

CNR1,0,1min CNR1,0,15min CNR1,0,5sec CNR1,1,1min CNR1,1,15min CNR1,1,5sec

T_CNR_K

CNR_body_temperature_kelvin

K

-30.0

60.0

CNR1,0,1min CNR1,0,15min CNR1,0,5sec CNR1,1,1min CNR1,1,15min CNR1,1,5sec

3.17.1.6. Serials

Serial

Suffix

00022123

A

000220

B

3.17.1.7. Deployments

3.17.1.7.1. Serial number: 00022123

Site ID

Start date

End date

SWT

2017-05-18 00:00

2021-07-16 00:00

3.17.1.7.2. Serial number: 000220

Site ID

Start date

End date

KSK15S

2007-02-20 00:00

2008-08-12 00:00

KSK

2008-08-13 00:00

2009-09-30 00:00

KSS

2009-10-09 00:00

2012-03-25 00:00

KSNW

2012-09-19 00:00

2016-02-18 00:00

IMU

2016-05-04 00:00

2019-08-30 00:00

3.17.1.8. Photos

../../../_images/dscf1772_23787603735_o.jpg

Fig. 3.39 CNR1 (leftmost instrument) at KSK 18/08/2009

../../../_images/r0015029_23161117173_o.jpg

Fig. 3.40 On top of tower at KSS 08/04/2011

../../../_images/102_1939_23631816005_o.jpg

Fig. 3.41 At KSNW 05/07/2015

../../../_images/img_2869_35347870513_o.jpg

Fig. 3.42 At IMU 21/07/2017

../../../_images/23-07-2020_(14).JPEG

Fig. 3.43 At SWT 23/07/2020

3.17.1.9. Supplementary information

Link

Title

Description

CNR1 manual

CNR1 manual

Manual from Campbell Scientific

3.17.1.10. Data acquisition

Data can be requested from Prof. Sue Grimmond (c.s.grimmond@reading.ac.uk).

3.17.1.11. References

  1. Hertwig, D., Grimmond, S., Hendry, M. A., Saunders, B., Wang, Z., Jeoffrion, M., Vidale, P. L., McGuire, P. C., Bohnenstengel, S. I., Ward, H. C. and Kotthaus, S. (2020) Urban signals in high-resolution weather and climate simulations: role of urban land-surface characterisation. Theoretical and Applied Climatology, 142. pp. 701-728. ISSN 0177-798X doi: https://doi.org/10.1007/s00704-020-03294-1

  2. Meyer, D., Schoetter, R., Riechert, M., Verrelle, A., Tewari, M., Dudhia, J., Masson, V., Reeuwijk, M. and Grimmond, S. (2020) WRF‐TEB: implementation and evaluation of the coupled Weather Research and Forecasting (WRF) and Town Energy Balance (TEB) model. Journal of Advances in Modeling Earth Systems, 12 (8). e2019MS001961. ISSN 1942-2466 doi: https://doi.org/10.1029/2019MS001961

  3. Järvi, L., Havu, M., Ward, H. C., Bellucco, V., McFadden, J. P., Toivonen, T., Heikinheimo, V., Kolari, P., Riikonen, A. and Grimmond, C. S. B. (2019) Spatial modelling of local‐scale biogenic and anthropogenic carbon dioxide emissions in Helsinki. Journal of Geophysical Research: Atmospheres, 124 (15). pp. 8363-8384. ISSN 2169-8996 doi: https://doi.org/10.1029/2018JD029576

  4. Kokkonen, T. V., Grimmond, S., Murto, S., Liu, H., Sundstr�m, A.-M. and J�rvi, L. (2019) Simulation of the radiative effect of haze on the urban hydrological cycle using reanalysis data in Beijing. Atmospheric Chemistry and Physics, 19. pp. 7001-7017. ISSN 1680-7316 doi: https://doi.org/10.5194/acp-19-7001-2019

  5. Ao, X., Grimmond, C. S. B., Liu, D., Han, Z., Hu, P., Wang, Y., Zhen, X. and Tan, J. (2016) Radiation fluxes in a business district of Shanghai, China. Journal of Applied Meteorology and Climatology, 55 (11). pp. 2451-2468. ISSN 1558-8432 doi: https://doi.org/10.1175/JAMC-D-16-0082.1

  6. Karsisto, P., Fortelius, C., Demuzere, M., Grimmond, C. S. B., Oleson, K. W., Kouznetsov, R., Masson, V. and J�rvi, L. (2016) Seasonal surface urban energy balance and wintertime stability simulated using three land-surface models in the high-latitude city Helsinki. Quarterly Journal of the Royal Meteorological Society, 142 (694). pp. 401-417. ISSN 1477-870X doi: https://doi.org/10.1002/qj.2659

  7. Bjorkeren, A. B., Grimmond, C. S. B., Kotthaus, S. and Malamud, B. D. (2015) CO2 emission estimation in the urban environment: measurement of the CO2 storage term. Atmospheric Environment, 122. pp. 775-790. ISSN 1352-2310 doi: https://doi.org/10.1016/j.atmosenv.2015.10.012

  8. Ward, H. C., Kotthaus, S., Grimmond, C. S. B., Bjorkegren, A., Wilkinson, M., Morrison, W. T. J., Evans, J. G., Morison, J. I. L. and Iamarino, M. (2015) Effects of urban density on carbon dioxide exchanges: observations of dense urban, suburban and woodland areas of southern England. Environmental Pollution, 198. pp. 186-200. ISSN 0269-7491 doi: https://doi.org/10.1016/j.envpol.2014.12.031

  9. Kotthaus, S. and Grimmond, C. S. B. (2014) Energy exchange in a dense urban environment Part II: impact of spatial heterogeneity of the surface. Urban Climate, 10 (2). pp. 281-307. ISSN 2212-0955 doi: https://doi.org/10.1016/j.uclim.2013.10.001

  10. Kotthaus, S. and Grimmond, C. S. B. (2014) Energy exchange in a dense urban environment – part I: temporal variability of long-term observations in central London. Urban Climate, 10 (2). pp. 261-280. ISSN 2212-0955 doi: https://doi.org/10.1016/j.uclim.2013.10.002

  11. Magliulo, V., Toscano, P., Grimmond, C. S. B., Kotthaus, S., J�rvi, L., Set�l�, H., Lindberg, F., Vogt, R., Staszewski, T., Bubak, A., Synnefa, A. and Santamouris, M. (2014) Environmental measurements in BRIDGE case studies. In: Chrysoulakis, N., de Castro, E. A. and Moors, E. J. (eds.) Understanding Urban Metabolism. Routledge, pp. 45-57. ISBN 9780415835114

  12. J�rvi, L., Grimmond, C. S. B., Taka, M., Nordbo, A., Set�l�, H. and Strachan, I. B. (2014) Development of the Surface Urban Energy and Water balance Scheme (SUEWS) for cold climate cities. Geoscientific Model Development, 7. pp. 1691-1711. ISSN 1991-9603 doi: https://doi.org/10.5194/gmd-7-1691-2014

  13. Wood, C. R., Pauscher, L., Ward, H. C., Kotthaus, S., Barlow, J., Gouvea, M., Lane, S. E. and Grimmond, C. S. B. (2013) Wind observations above an urban river using a new lidar technique, scintillometry and anemometry. Science of the Total Environment, 442. pp. 527-533. ISSN 0048-9697 doi: https://doi.org/10.1016/j.scitotenv.2012.10.061

  14. Loridan, T., Lindberg, F., Jorba, O., Kotthaus, S., Grossman-Clarke, S. and Grimmond, C. S. B. (2013) High resolution simulation of the variability of surface energy balance fluxes across central London with urban zones for energy partitioning. Boundary-Layer Meteorology, 147 (3). pp. 493-523. ISSN 0006-8314 doi: https://doi.org/10.1007/s10546-013-9797-y

  15. Kotthaus, S. and Grimmond, C. S. B. (2012) Identification of micro-scale anthropogenic CO2, heat and moisture sources – processing eddy covariance fluxes for a dense urban environment. Atmospheric Environment, 57. pp. 301-316. ISSN 1352-2310 doi: https://doi.org/10.1016/j.atmosenv.2012.04.024

  16. Loridan, T., Grimmond, C.S.B., Offerle, B. D., Young, D. T., Smith, T. E. L., J�rvi, L. and Lindberg, F. (2011) Local-scale urban meteorological parameterization scheme (LUMPS): longwave radiation parameterization and seasonality-related developments. Journal of Applied Meteorology and Climatology, 50 (1). pp. 185-202. ISSN 1558-8424 doi: https://doi.org/10.1175/2010JAMC2474.1

Tip

  1. Stuck? the user guide is a useful place to start.

  2. Please report issues at GitHub Issues. Go from the page with the problem - an automatic link will be inserted. Thanks.