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If you use the data obtained from this web interface please cite this website url (https://storm.pps.eosdis.nasa.gov/storm/OpenSSP.jsp) and the following paper: K.-S. Kuo, W.S. Olson, B.T. Johnson, M. Grecu, L. Tian, T.L. Clune, B.H. van Aartsen, A.J. Heymsfield, L. Liao, R. Meneghini. The Microwave Radiative Properties of Falling Snow Derived from Nonspherical Ice Particle Models. Part I: An Extensive Database of Simulated Pristine Crystals and Aggregate Particles, and Their Scattering Properties. Journal of Applied Meteorology and Climatology, March 2016, Vol. 55, No. 3 The paper can be found here (Registration Required)
Session ID (Change to Whatever You Like)
- Pristine
- Aggregate
- Modeled PSD
- m-D & PSD
- Scattering Data Package
- Particle Structure
- Development Data
p-04
p-08
p-09
p-10
p-13
p-14
p-16
p-17
p-19
p-20
p-29
p-31
p-39
p-40
p-41
p-42
p-43
p-44
p-45
p-46
Select All
Or Choose Up To 20 Below
Select All5.00
10.66
13.61
18.71
23.82
35.53
89.06
94.07
150.10
165.62
176.42
180.43
186.43
190.43
p-13
p-14
p-04
p-16
p-29
p-19
p-46
p-44
p-43
Select All
Or Choose Up To 20 Below
Select All5.00
10.66
13.61
18.71
23.82
35.53
89.06
94.07
150.10
165.62
176.42
180.43
186.43
190.43
p-04
p-08
p-09
p-10
p-13
p-14
p-16
p-17
p-19
p-20
p-29
p-31
p-39
p-40
p-41
p-42
p-43
p-44
p-45
p-46
p-13
p-14
p-04
p-16
p-29
p-19
p-46
p-44
p-43
Distribution Type
Exponential
Gamma
0.006.00
[unitless]
Dm Max Dm: Dmtoo large for particles.
Bin Size
Minimum Size:
Maximum Size:
Number of Sizes:
Select All5.00
10.66
13.61
18.71
23.82
35.53
89.06
94.07
150.10
165.62
176.42
180.43
186.43
190.43
At this tab, users can specify a mass-dimension (m-D) relation that constrain a PSD that they also specify. A snowing volume inevitably contains a mixture of hydrometeors with diverse shapes and sizes. Since it is impossible to distinguish the shape and size compositions of such a volume with radar or radiometer signal, we usually assume the hydrometeors therein follow certain m-D relation statistically. Thus, for retrieval applications, PSDs constrained by m-D relations are often used to derive ensemble scattering properties of snowing volumes.
Relation is assumed to be in the form m=a*Db
4.09.0
x10-3 [unitless] b
1.82.4
[unitless] Mass Deviation [%]
Distribution Type
Exponential
Gamma
0.006.00
[unitless]
= Dmax
Bin Size Maximum Dm: Dm too large for particles.
Select All5.00
10.66
13.61
18.71
23.82
35.53
89.06
94.07
150.10
165.62
176.42
180.43
186.43
190.43
- The HDF5 Archive contains summary geometric parameters and orientation-averaged scattering parameters. It does not contain shape.dat or png image files. Ddscat.dat and shape.dat files will be packaged and distributed under the "Development Data" tab in a future update.
To Download Archives by Frequency, Select from the following options and click the "Order Archives" Button (~228 MB each)
| 3.00GHz | 13.61GHz | 35.53GHz | 150.10GHz | 180.43GHz |
| 5.00GHz | 18.71GHz | 89.06GHz | 165.62GHz | 186.43GHz |
| 10.66GHz | 23.82GHz | 94.07GHz | 176.42GHz | 190.43GHz |
| All (714MB) |
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p-19
p-20
p-29
p-31
p-39
p-40
p-41
p-42
p-43
p-44
p-45
p-46
p-13
p-14
p-04
p-16
p-29
p-19
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p-43
