This readme.txt file was generated on 20250407 by Noemi Imfeld
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GENERAL INFORMATION
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1. Title of dataset: A daily gridded high-resolution meteorological data set for Switzerland, 1763-2020

2. Contributor information: 
      Name: Noemi Imfeld
      Role/Function: Data creator
      Institution: Institute of Geography, University of Berm
      Address: Hallerstr. 12, 3012 Bern
      Email: noemi.imfeld@unibe.ch

      Name: Prof. Stefan Brönnimann
      Role/Function: Principal Investigator
      Institution: Institute of Geography, University of Berm
      Address: Hallerstr. 12, 3012 Bern
      Email: stefan.broennimann@unibe.ch
      
3. Date of data collection: 
2024-04-01

4. Geographic location of data collection:
Switzerland

5. Keywords describing the subject of your dataset:
weather reconstruction, Switzerland, early instrumental data

6. Information about funding sources that supported the collection of the data:
Funding: Wyss Academy for Nature

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SHARING/ACCESS INFORMATION
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1. Licenses/restrictions placed on the data:
CC-BY 4.0

2. Links to publications that cite or use the data: 

3. Links to other publicly accessible locations of the data: 


4. Links/relationships to additional data sets: 
Imfeld, N., Pfister, L., Brugnara, Y., & Brönnimann, S. (2022).
Daily high-resolution temperature and precipitation fields for Switzerland from 1763 to 2020 [dataset]. 
PANGAEA, https://doi.org/10.1594/PANGAEA.950236

Imfeld, Noemi (2024).
Daily gridded climate and phenology indices for Switzerland from 1763 to 2020 [dataset]. 
PANGAEA, https://doi.org/10.1594/PANGAEA.964697

5. Was data derived from another source? no. 

6. Links to other related publications:
Imfeld, N., Pfister, L., Brugnara, Y., & Brönnimann, S. (2023). 
A 258-year-long data set of temperature and precipitation fields for Switzerland since 1763. 
Climate of the Past, 19(3), 703-729.

6. Recommended citation for this dataset: 
Imfeld, N. A daily gridded high-resolution meteorological data set for Switzerland, 1763-2020 (2025)

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DATA & FILE OVERVIEW
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1. File List:  
    
2. Relationship between files:

3. Are there multiple versions of the dataset? no

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METHODOLOGICAL INFORMATION
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1. Description of methods used for collection/generation of data: 
The fields are based on early instrumental data and have been produced using the analogue method and data assimilation.
The full methodology is described in Imfeld and Brönnimann, 2025 (in review).

2. Methods for processing the data: 

3. Instrument- or software-specific information needed to interpret the data:

4. Standards and calibration information:

5. Environmental/experimental conditions:

6. Describe any quality-assurance procedures performed on the data:

7. People involved with sample collection, processing, analysis and/or submission:


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DATA-SPECIFIC INFORMATION
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This data set is composed of daily gridded meteorological fields for eight variables at a 1x1 km resolution for Switzerland spanning the period 1763-2020. 
The variables are:

1. Daily maximum temperature at 2 m [°C]
2. Daily minimum temperature at 2 m [°C]
3. U-wind component at 10 m [m/s]
4. V-wind component at 10 m [m/s]
5. Relative sunshine duration [%]
6. Daily mean relative humidity at 2 m [%]
7. Daily minimum relative humidity at 2m [%]
8. Forest fire weather index [unitless]

For every variable and every year, an individual netcdf-file is available.
For the Forest Fire Weather Index, which encompasses six indices, the netcdf-file for every year contains these six indices.