BEF-China | CSPs: Kinetic energy of raindrops in the CSPs: characteristics of rain events

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

Title:

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

Access rights:

Free for public

Usage rights:

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)

Published:

No information available

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.

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.

Temporal extent:

No information available

Taxonomic extent:

no organisms, only vegetated and bare plots

Measurement cirumstances:

No information available

Data analysis:

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

Filter:

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Dataset column

Name:

event

Definition:

event no --event no -- running number of rainfall events

Unit:

No information available

Datagroup:

Rainevent for determinig kinetic energy of rainfalls

Keywords:

precipitation

Values:

12
1
13
10
11

Contributors:

No information available

Dataset column

Name:

camp

Definition:

campaign no --campaign -- running number of campaigns (1=2008, 2=2009, 3=2010)

Unit:

No information available

Datagroup:

Helper

Keywords:

No information available

Values:

1
2
3

Contributors:

No information available

Dataset column

Name:

begin

Definition:

measurement begin --event begin -- start date of event (yyyy/mm/dd; hh:ss)

Unit:

No information available

Datagroup:

Date time information

Keywords:

date

Values:

2008-08-27 12:00:00
2008-09-03 12:00:00
2008-09-10 12:00:00
2008-08-24 12:00:00
2008-08-30 12:00:00

Contributors:

No information available

Dataset column

Name:

end

Definition:

measurement end --event end -- end date of event (yyyy/mm/dd; hh:ss)

Unit:

No information available

Datagroup:

Date time information

Keywords:

No information available

Values:

2008-08-26 12:00:00
2008-09-11 12:00:00
2008-09-05 12:00:00
2008-08-28 12:00:00
2008-08-31 12:00:00

Contributors:

No information available

Dataset column

Name:

type

Definition:

type of measurement --type of measurement -- splash cups random (SCR), splash cups species-specific (SCS), Laser precipitation monitor (LPM)

Unit:

No information available

Datagroup:

Helper

Keywords:

No information available

Values:

SCS
SCB, SCS

Contributors:

No information available

Dataset column

Name:

Definition:

sc amount (n) --sc amount (n) -- total amount of splash cups for the specified event

Unit:

No information available

Datagroup:

Sample size

Keywords:

splashcup

Values:

300
120
135
225
110

Contributors:

No information available

Dataset column

Name:

loss_f

Definition:

average sandloss forest g m-2 -- --

Unit:

gramsPerSquareMeter

Datagroup:

Deriving kinetic energy from sand loss

Keywords:

erosion, kinetic energy, raindrop

Values:

4.31
13.73
32.8
37.31
28.83

Contributors:

No information available

Dataset column

Name:

loss_o

Definition:

average sandloss open field g m-2 -- --

Unit:

gramsPerSquareMeter

Datagroup:

Deriving kinetic energy from sand loss

Keywords:

No information available

Values:

16.69
1.8051595069026292
18.773658871787344
17.91
0.9025797534513146

Contributors:

No information available

Dataset column

Name:

am_b

Definition:

rainfall amount open field (collecting bottle) mm --rainfall amount (collecting bottle) -- measured by a rainfall collecting bottle

Unit:

millimeter

Datagroup:

Precipitation

Keywords:

precipitation

Values:

2.36
21.11
111.14
20.96
103.13

Contributors:

No information available

Dataset column

Name:

am_v

Definition:

rainfall amount open field (vaisala) mm --rainfall amount (vaisala) -- measured by the vaisala sensor

Unit:

millimeter per hour

Datagroup:

Precipitation

Keywords:

No information available

Values:

33.95
11.61
26.15
1.8
3.8

Contributors:

No information available

Dataset column

Name:

int_v

Definition:

average rainfall intensity open field (vaisala) mm/h --average rainfall intensity (vaisala) -- measured by the vaisala sensor

Unit:

millimeter per hour

Datagroup:

Precipitation

Keywords:

No information available

Values:

0.69
0.48
1.27
1.69
2.05

Contributors:

No information available

Dataset column

Name:

peak_v

Definition:

peak rainfall intensity open field (vaisala) mm/h --peak rainfall intensity (vaisala) -- measured by the vaisala sensor

Unit:

millimeter per hour

Datagroup:

Precipitation

Keywords:

No information available

Values:

41.16
12.72
10.08
24
1.68

Contributors:

No information available

Dataset column

Name:

top5_v

Definition:

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

Datagroup:

Precipitation

Keywords:

precipitation

Values:

32.98
33.79
1.18
18.65
4.61

Contributors:

No information available

Dataset column

Name:

am_t

Definition:

rainfall amount (tipping-bucket) mm --rainfall amount (tipping-bucket) -- measured by the tipping-bucket rain gauge

Unit:

millimeter

Datagroup:

Precipitation

Keywords:

No information available

Values:

2.8
22.3
39.9
83.7
70

Contributors:

No information available

Dataset column

Name:

int_t

Definition:

average rainfall intensity (tipping-bucket) mm/h --average rainfall intensity (tipping-bucket) -- measured by the tipping-bucket rain gauge

Unit:

millimeter per hour

Datagroup:

Precipitation

Keywords:

No information available

Values:

1.29
7.03
2.72
1.7
5.49

Contributors:

No information available

Dataset column

Name:

peak_t

Definition:

peak rainfall intensity (tipping-bucket) mm/h --peak rainfall intensity (tipping-bucket) -- measured by the tipping-bucket rain gauge

Unit:

millimeter per hour

Datagroup:

Precipitation

Keywords:

No information available

Values:

39.6
2.4
13.2
6
27.6

Contributors:

No information available

Dataset column

Name:

top5_t

Definition:

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

Datagroup:

Precipitation

Keywords:

precipitation

Values: