CSPs: Kinetic energy of raindrops in the CSPs: characteristics of rain events

Usage Rights

This data is Free for public.

Permission is granted to anybody to access, use and publish all open for public data freely. The commercial use of any data is prohibited. The quality and completeness of data cannot be guaranteed. Users employ these data at their own risk. In order to make attribution of use for owners of the data possible, the identifier of ownership of data must be retained with every data record. Users must publicly acknowledge, in conjunction with the use of the data, the data owners. Cite the data as follows: Geißler, C., Scholten, T. and Kühn, P. (2009): Rainfall for rain events within splashcups measurements for kinetic energy of raindrops. BEF-China data portal (Accessed through URL http://china.befdata.biow.uni-leipzig.de/datasets/58)

Dataset Abstract

Rain was captured in open field and in vegetated conditions parallel to measurements in the Comparative study plots (CSPs). Throughfall as well as sandloss from splashcups can be used to derive kinetic energy from raindrops.

Dataset Design

The splash cups consist of a PE flask to which a carrier system has been attached. In this carrier system a cup filled with a unit sand of 125-200 µm particle size is inserted. At the bottom of the cup a silk cover prevents loss of sand and guarantees free drainage of water from the cup to the carrier and vice versa. Cup and PE flask are hydraulically connected by a cotton wick to ensure constant moisture content throughout the time of measuring, as the initial water content is a crucial point in splash erosion studies (Poesen and Savat 1981). Additionally, vents in the carrier system ensure that the pressure arising from the insertion of the cup does not lead to loss of sand. The vent in the PE flask guarantees the free drainage of excess water which may accumulate during high intensity rainfall events.

Spatial Extent

The Gutianshan National Nature Reserve (NNR) is located in the western part of Zhejiang Province (29º8'18" – 29º17'29" N, 118º2'14" – 118º11'12" E, Fig. 1). The Gutianshan NNR has an area of approximately 81 km2 and was initially established as a National Forest Reserve in 1975 and became a National Nature Reserve in 2001.

Taxonomic Extent

no organisms, only vegetated and bare plots

Data Analysis

This file serves as lookup for rain event intensity for the files on "Splashcup data CSPs: kinetic Energy of raindrops".

Paper proposal submissions

Published

2012

Data columns available in the raw data part of this dataset

event
event no --event no -- running number of rainfall events
Data group: Rainevent for determinig kinetic energy of rainfalls
Keywords: precipitation
Values
11
10
1
13
12
camp
campaign no --campaign -- running number of campaigns (1=2008, 2=2009, 3=2010)
Data group: Helper
Values
3
1
2
begin
measurement begin --event begin -- start date of event (yyyy/mm/dd; hh:ss)
Data group: Date time information
Keywords: date
Values
2008-08-27 12:00:00
2008-09-10 12:00:00
2008-08-24 12:00:00
2008-09-03 12:00:00
2008-08-30 12:00:00
end
measurement end --event end -- end date of event (yyyy/mm/dd; hh:ss)
Data group: Date time information
Values
2008-08-28 12:00:00
2008-09-11 12:00:00
2008-08-26 12:00:00
2008-09-05 12:00:00
2008-08-31 12:00:00
type
type of measurement --type of measurement -- splash cups random (SCR), splash cups species-specific (SCS), Laser precipitation monitor (LPM)
Data group: Helper
Values
SCB, SCS
SCS
sc
sc amount (n) --sc amount (n) -- total amount of splash cups for the specified event
Data group: Sample size
Keywords: splashcup
Values
225
120
110
300
135
loss_f
average sandloss forest g m-2 -- --
Unit: gramsPerSquareMeter
Data group: Deriving kinetic energy from sand loss
Keywords: erosion, kinetic energy, raindrop
Values
4.31
32.8
37.31
28.83
13.73
loss_o
average sandloss open field g m-2 -- --
Unit: gramsPerSquareMeter
Data group: Deriving kinetic energy from sand loss
Values
17.91
0.9025797534513146
1.8051595069026292
18.773658871787344
16.69
am_b
rainfall amount open field (collecting bottle) mm --rainfall amount (collecting bottle) -- measured by a rainfall collecting bottle
Unit: millimeter
Data group: Precipitation
Keywords: precipitation
Values
2.36
21.11
20.96
111.14
103.13
am_v
rainfall amount open field (vaisala) mm --rainfall amount (vaisala) -- measured by the vaisala sensor
Unit: millimeter per hour
Data group: Precipitation
Values
3.8
26.15
33.95
1.8
11.61
int_v
average rainfall intensity open field (vaisala) mm/h --average rainfall intensity (vaisala) -- measured by the vaisala sensor
Unit: millimeter per hour
Data group: Precipitation
Values
1.69
0.48
1.27
2.05
0.69
peak_v
peak rainfall intensity open field (vaisala) mm/h --peak rainfall intensity (vaisala) -- measured by the vaisala sensor
Unit: millimeter per hour
Data group: Precipitation
Values
1.68
10.08
24
12.72
41.16
top5_v
average of the five highest five minute intensities open field (vaisala) --average of the five highest five minute intensities (vaisala) -- measured by the vaisala sensor
Unit: millimeter per hour
Data group: Precipitation
Keywords: precipitation
Values
4.61
18.65
33.79
1.18
32.98
am_t
rainfall amount (tipping-bucket) mm --rainfall amount (tipping-bucket) -- measured by the tipping-bucket rain gauge
Unit: millimeter
Data group: Precipitation
Values
22.3
70
2.8
83.7
39.9
int_t
average rainfall intensity (tipping-bucket) mm/h --average rainfall intensity (tipping-bucket) -- measured by the tipping-bucket rain gauge
Unit: millimeter per hour
Data group: Precipitation
Values
1.7
7.03
5.49
2.72
1.29
peak_t
peak rainfall intensity (tipping-bucket) mm/h --peak rainfall intensity (tipping-bucket) -- measured by the tipping-bucket rain gauge
Unit: millimeter per hour
Data group: Precipitation
Values
39.6
27.6
13.2
6
2.4
top5_t
average of the five highest five minute intensities (tipping-bucket) --average of the five highest five minute intensities (tipping-bucket) -- measured by the tipping-bucket rain gauge
Unit: millimeter per hour
Data group: Precipitation
Keywords: precipitation
Values
4.8
11.04
34.32
24.72
1.68
wind_v
average wind speed m/s --average wind speed -- measured by the vaisala sensor
Unit: metersPerSecond
Data group: Wind speed
Keywords: wind speed
Values
0.49
0.5
0.39
0.47
0.42
pwind_v
peak wind speed m/s --peak wind speed -- measured by the vaisala sensor
Unit: metersPerSecond
Data group: Wind speed
Values
1.1
5.5
1.9
2.2
3.8