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GrADS
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win7 64bit |
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问题概况: |
下载了nc文件用matlab查看disp后找不到要找的数据,,非气象专业,要做风电场分析 |
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被学校赶鸭子上架做风电场评价,,本业不是气象的,故轻喷。问题对你们应该很简单,我从NOAA下了一个全球月平均风速nc数据,matlab读出后显示如下:
Source:
F:\wspd.mon.ltm.nc
Format:
netcdf4_classic
Global Attributes:
description = 'Data from NCEP initialized reanalysis (4x/day). These are interpolated to pressure surfaces from model (sigma) surfaces'
platform = 'Model'
Conventions = 'COARDS'
references = 'http://www.esrl.noaa.gov/psd/data/gridded/data.ncep.reanalysis.derived.html'
not_missing_threshold_percent = 'minimum 3% values input to have non-missing output value'
history = 'Created 2011/07/12 by doMonthLTM
Converted to chunked, deflated non-packed NetCDF4 2014/09'
title = 'monthly ltm wspd from the NCEP Reanalysis'
Dimensions:
lon = 144
lat = 73
level = 17
time = 12
nbnds = 2
Variables:
level
Size: 17x1
Dimensions: level
Datatype: single
Attributes:
units = 'millibar'
long_name = 'Level'
positive = 'down'
GRIB_id = 100
GRIB_name = 'hPa'
actual_range = [1000 10]
axis = 'Z'
lat
Size: 73x1
Dimensions: lat
Datatype: single
Attributes:
units = 'degrees_north'
actual_range = [90 -90]
long_name = 'Latitude'
standard_name = 'latitude'
axis = 'Y'
lon
Size: 144x1
Dimensions: lon
Datatype: single
Attributes:
units = 'degrees_east'
long_name = 'Longitude'
actual_range = [0 357.5]
standard_name = 'longitude'
axis = 'X'
time
Size: 12x1
Dimensions: time
Datatype: double
Attributes:
long_name = 'Time'
delta_t = '0000-01-00 00:00:00'
avg_period = '0030-00-00 00:00:00'
prev_avg_period = '0000-01-00 00:00:00'
standard_name = 'time'
axis = 'T'
climatology = 'climatology_bounds'
climo_period = '1981/01/01 - 2010/12/31'
interpreted_actual_range = '0001/01/01 00:00:00 - 0001/12/01 00:00:00'
units = 'days since 1800-01-01 00:00:0.0'
actual_range = [-657073 -656739]
climatology_bounds
Size: 2x12
Dimensions: nbnds,time
Datatype: double
Attributes:
long_name = 'Climate Time Boundaries'
units = 'hours since 1-1-1 00:00:0.0'
wspd
Size: 144x73x17x12
Dimensions: lon,lat,level,time
Datatype: single
Attributes:
long_name = 'Monthly Long Term Mean Wind Speed'
units = 'm/s'
add_offset = 0
scale_factor = 1
missing_value = -9.969209968386869e+36
precision = 2
least_significant_digit = 1
var_desc = 'Wind Speed'
dataset = 'CDC Derived NCEP Reanalysis Products'
level_desc = 'Multiple levels'
statistic = 'Long Term Mean'
parent_stat = 'Mean'
valid_range = [0 200]
actual_range = [0.907998 93.047]
valid_yr_count
Size: 144x73x17x12
Dimensions: lon,lat,level,time
Datatype: single
Attributes:
long_name = 'count of non-missing values used in mean'
missing_value = 32767
add_offset = 0
scale_factor = 1
我找到了经纬度,时间参数,但是不明白风速在哪里看,还有climatology_bounds,valid_yr_count什么意思,,跪求帮忙
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