cherry_blossoms

• Description:

Historical phenological data for cherry tree flowering at Kyoto City.

This data was collected from diaries and chronicles dating back to the 9th century. Data from the 9th to the 14th century were collected by Aono and Saito (2010; International Journal of Biometeorology, 54, 211-219), while the 15th to 21st century were collected by Aono and Kazui (2008; International Journal of Climatology, 28, 905-914).

All dates are expressed in the Gregorian calendar.

Number of instances: 1216

Variables:

1. year: Year CE (int)
2. doy: Day of year of first bloom. Day 89 is April 1. Day 119 is May 1. (float)
3. temp: March temperature estimate (float)
4. temp_upper: Upper 95% bound for estimate (float)
5. temp_lower: Lower 95% bound for estimate (float)

• Homepage: http://atmenv.envi.osakafu-u.ac.jp/aono/kyophenotemp4/

• Source code: tfds.structured.cherry_blossoms.CherryBlossoms

• Versions:

  • 1.0.0 (default): Initial release.

• Download size: 26.90 KiB

• Dataset size: 119.84 KiB

• Auto-cached (documentation): Yes

• Splits:

Split	Examples
'train'	1,215

• Feature structure:

FeaturesDict({
    'doy': float32,
    'temp': float32,
    'temp_lower': float32,
    'temp_upper': float32,
    'year': int32,
})

• Feature documentation:

Feature	Class	Shape	Dtype	Description
	FeaturesDict
doy	Tensor		float32
temp	Tensor		float32
temp_lower	Tensor		float32
temp_upper	Tensor		float32
year	Tensor		int32

• Supervised keys (See as_supervised doc): None

• Figure (tfds.show_examples): Not supported.

• Examples (tfds.as_dataframe):

• Citation:

@ONLINE {
    author = "Aono, Yasuyuki",
    title  = "Historical Series of Phenological data for Cherry Tree Flowering at Kyoto City (and March Mean Temperature Reconstructions)",
    year   = "2012",
    url    = "http://atmenv.envi.osakafu-u.ac.jp/aono/kyophenotemp4/"
}