Long-term series and trends in surface solar radiation in Athens, Greece

Kazadzis, Stelios; Founda, Dimitra; Psiloglou, Basil E.; Kambezidis, Harry; Mihalopoulos, Nickolaos; Sanchez-Lorenzo, Arturo; Meleti, Charikleia; Raptis, Panagiotis I.; Pierros, Fragiskos; Nabat, Pierre

doi:https://doi.org/10.5194/acp-18-2395-2018

Articles | Volume 18, issue 4

https://doi.org/10.5194/acp-18-2395-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

CHemistry and AeRosols Mediterranean EXperiments (ChArMEx)...

https://doi.org/10.5194/acp-18-2395-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 18, issue 4

Research article

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19 Feb 2018

Research article | Highlight paper |

| 19 Feb 2018

Long-term series and trends in surface solar radiation in Athens, Greece

Stelios Kazadzis, Dimitra Founda, Basil E. Psiloglou, Harry Kambezidis, Nickolaos Mihalopoulos, Arturo Sanchez-Lorenzo, Charikleia Meleti, Panagiotis I. Raptis, Fragiskos Pierros, and Pierre Nabat

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Final revised paper (published on 19 Feb 2018)
Preprint (discussion started on 14 Mar 2017)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Review for "Long-term series of surface solar radiation at Athens, Greece"', Katsumasa Tanaka, 10 Apr 2017
- RC3: 'Review of the paper "Long-term series of surface solar radiation at Athens, Greece" by S. Kazadzis et al.', Anonymous Referee #3, 26 Apr 2017
  - AC2: 'Reply to reviewer #3', Stelios Kazadzis, 14 Nov 2017
- AC1: 'reply to Dr. tanaka', Stelios Kazadzis, 14 Nov 2017
RC2: 'Accepted as is', Anonymous Referee #2, 12 Apr 2017
- AC3: 'Reply to reviewer', Stelios Kazadzis, 14 Nov 2017
EC1: 'Invitation to submit a revised version', François Dulac, 14 Nov 2017

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Stelios Kazadzis on behalf of the Authors (20 Nov 2017) Manuscript

ED: Referee Nomination & Report Request started (30 Nov 2017) by François Dulac

RR by Katsumasa Tanaka (24 Dec 2017)

RR by Anonymous Referee #3 (29 Dec 2017)

Suggestions for revision or reasons for rejection

The authors made a significant effort in characterizing
measurements' quality and on investigating limitations involved in the analysis of a very
long term time series.

The paper now includes information which was missing in the previous version, and
is essential for the reader to assess the data series reliability.

Within the stated limitations, the analysis provides a useful analysis of a long-term
dataset in the Southern Mediterranean, where few high quality data are present.
The paper may be accepted with minor revisions, outlined
below.

Various typoes are present throughout the text (see, e.g., reference citations); some
are reported below.

Page 2, lines 11-12: "Comparing the 30-year periods (1954-1983 and 1983-2012) we have found a difference of 4.5%." The sentence is not clear.

p. 3, l. 25: parenthesis

p. 4, l. 9: parentheses

p. 5, l. 34: parentheses

p. 8, l. 28: The method used to subtract the thermal offset was present in the
previous version and has been removed. I would prefer it to be included,
to allow the reader to understand how corrections are made.

p. 13, l. 31: difference

p. 14, figure 3: I would replace the "simulated" label in the upper figure with "estimated"

p. 17, l. 23: years

p. 18 l. 6 - p. 19, l. 4: figure 6 and the associated discussion
do not add information to the paper and might be removed

p. 20 l. 16: reconstruction

p. 20 l. 23-24: I would suggest modufying the sentence as follows: "Moreover, SSR is much more sensitive than SD to aerosol optical depth change ..."

p. 23, l. 9-10: The sentence "Individual seasonal calculated SSRs do not exceed by more than ±5%, the SSR variability of all sky data, with the exception of the winter season" is not clear.

p. 23 l. 14: may the decrease in mid 1960's be related with the Agung eruption (1963-64)?

p. 24 l. 4-7: is the Charmex startospheric AOD used in the analysis? Apparently, it is not included in figure 10. This should be clarified in the discussion.

p. 35, l. 30: Vignola et al., 2016 instead of 2012.

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ED: Publish subject to technical corrections (16 Jan 2018) by François Dulac

AR by Stelios Kazadzis on behalf of the Authors (17 Jan 2018) Author's response Manuscript

Short summary

The National Observatory of Athens has been collecting solar radiation, sunshine duration, and cloud and visibility data/observations since the beginning of the 20th century. In this work we present surface solar radiation data since 1953 and reconstructed data since 1900. We have attempted to show and discuss the long-term changes in solar surface radiation over Athens, Greece, using these unique datasets.