Wrf Q2, I need to insert into the WRF code 评价要素 逐时2米气温（T2）、2米比湿度（q2）和10米风速（U10） 降水 评价指标 1、 Mean Bias（MB，平均偏差） MB 表示模拟值与观测值之间的平均误差，反映了 模型 的系统性偏差。 若 MB 为正，表示模拟值总体偏高；若 MB 为负，表示模拟值总体偏低。 WRF输出变量说明 以下是WRF输出变量的一个翻译,由于不是所有的变量都接触过,也仅仅是就字面意思翻译,所以有的变量的意义难免是不对的 (拿不准的,我会用红色标出),因此请用过其中变量的朋友和我一起来完善它: float LU_INDEX (Time, south_north, west_east) ; Issue created from comment in #404 In addition to making the WRFv3. 以下是WRF输出变量的一个翻译，由于不是所有的变量都接触过，也仅仅是就字面意思翻译，所以有的变量的意义难免是不对的（拿不准的，我会用红色标出），因此请用过其中变量的朋友和我一起来完善它：float LU_INDEX(Time, south_north, west_east) ;LU_INDEX:de Dear all, I am doing moisture budget analysis with WRF outputs. 1-DART Tutorial compatible with Derecho as part of the completed issue #627 which was resolved by PR #636 -- I have continued to What is the configuration of the National Water Model? WRF-Hydro is the current modeling framework of the National Water Model (NWM). F module used the QSFC ( ground saturated mixing ratio) to calculate the Q2 (2m mixing ratio). to_np(lons), wrf. mainly due to widespread increases in near-surface temperature and background methane concentrations, with some contributions from localized TDM emission . I have read this FAQ Conventional grid spacing is the diagonal distance “d”. S. Kim Special WRF Output Variables The WRF model outputs the state variables defined in the Registry file, and these state variables are used in the model's prognostic equations. 1 g/kg) wrf. The official repository for the Weather Research and Forecasting (WRF) model - wrf-model/WRF WRF Downscaling Variable List Master @Ming Chen , I am sorry for disturbing you, but I saw your post about calculation of RH: relative humidity I have a question , in your equation what is the difference between t and T? Does t represent T2 at 2 meters, and doesT represent 3D variable of temeprature? Q2 Zero length iterator passed to TextLayout constructor QV at 2 M 地面2m高度的比湿 QFX [kg/ (m^2 * s)] 显示，有变化 UPWARD MOISTURE FLUX AT THE SURFACE 地表面处向上的水汽通量 RAINC [mm] 显示，有变化 ACCUMULATED TOTAL CUMULUS PRECIPITATION 累积的积云对流降水 RAINNC [mm] 显示，地图一直为0 Hello, I am running MPAS 7. ssed from the raw WRF three-hourly output. WRF Users' Guide in restructured text format. NioFile or an iterable sequence of the aforementioned types. 1 of the Weather Research and Forecasting model coupled with Chemistry (WRF-Chem). DataArray or numpy. U10=U at 10M 东西方向高度10m的风速，单位:m s-1. 5k次，点赞4次，收藏35次。本文档提供了WRF模型输出的各种气象变量的详细解释，包括地表类型、风速分量、位势、土壤参数、降水、辐射通量等。部分变量如eta坐标系的值、土壤湿度和雪水等价物等对于理解和分析WRF模拟结果至关重要。同时，文中还列举了一些未确定意义的变量 1 Introduction The Weather Research and Forecasting (WRF) model's hydrological modeling extension package, known as WRF-Hydro, is as a collaborative and community-driven framework originally conceived to facilitate the seamless integration of the WRF atmospheric model with various components of terrestrial hydrologic models (Gochis & Chen, 2003). Compiling WRF Compiling WRF takes a long time. If your connection to FRAM breaks the job will still run! Jan 1, 2016 · The improved WRF/Chem is also applied to estimate the impacts of anthropogenic aerosols on air quality and climate through direct and indirect effects in East Asia. , Zhang et al. V10=V at 10M 南北方向高度10m的风速，单位:m s-1. The same variables are in the monthly files processed from the da. 90516 let a2 = 17. to_np(lats), wrf. getvar() to both extract and compute diagnostic variables. 9w次，点赞27次，收藏94次。以下是WRF输出变量的一个翻译，由于不是所有的变量都接触过，也仅仅是就字面意思翻译，所以有的变量的意义难免是不对的（拿不准的，我会用红色标出），因此请用过其中变量的朋友和我一起来完善它：float LU_INDEX (Time, south_north, west_east) ;LU_INDEX:description Q2 如果我想查看特定程序的执行方式，是否可以在该程序中添加“ stop”语句？ A2 终止模型的正确方法是使用对wrf_error_fatal的 WRF调用。 如果将其“ grep”到目录WRFV3 / phys中，则将看到其用法。 这应该杀死所有处理器上的模型。 文章浏览阅读5. Therefore, you should put the compiling job into the background. ly files, with two additions (bold-italic). Contribute to wrf-model/Users_Guide development by creating an account on GitHub. ALL_TIMES, optional) – The desired time index. I checked the ctl file output by ARWpost. ALL_TIMES (an alias for None) to return all times WRF输出变量说明 以下是WRF输出变量的一个翻译，由于不是所有的变量都接触过，也仅仅是就字面意思翻 译，所以有的变量的意义难免是不对的（拿不准的，我会用红色标出） ，因此请用过其中变 量的朋友和我一起来完善它： float LU_INDEX (Time, south_north, west_east); Issue created from comment in #404 In addition to making the WRFv3. Q1：为什么要通过WRF输出非绝热加热项 一般的非绝热加热数据，需要通过WRF输出，原因如下两点： 现有的再分析资料中对于非绝热加热数据的缺失； 基于 参数化 计算的已有的非绝热加热资料不够准确 (Luo & Yanai, 1984)。 Q2 : How do I estimate the heating profile? Answer: Hi I have a problem with WRF-ARW. If the specified data does not exist on the user's machine, then it will try to be downloaded from the AirFire database. This is the raw computational algorithm and does not extract any variables from WRF output files. PSFC=SFC pressure 单位：Pa. timeidx (int or wrf. 1-DART Tutorial compatible with Derecho as part of the completed issue #627 which was resolved by PR #636 -- I have continued to 常见的问题是误将“Q2”（近地表比湿）或“T2”（近地表温度）当作三维湿度变量使用，而正确变量应为“QVAPOR”结合模型层次温度“T”。 此外，有时开发者可能忽视WRF中湿度计算需用到的气压变量“P”和“PB”，这会导致公式不完整。 WRF输出变量说明 以下是WRF输出变量的一个翻译，由于不是所有的变量都接触过，也仅仅是就字面意思翻 译，所以有的变量的意义难免是不对的（拿不准的，我会用红色标出） ，因此请用过其中变 量的朋友和我一起来完善它： float LU_INDEX (Time, south_north, west_east); I'm using the WRF Post Processor (WPP) to convert my WRF-ARW output to grib1 format for use in MET. New meteorological models have been developed that include seamless mesh refinement from global to local scales. varname (str) – The variable name. 5k次，点赞6次，收藏30次。以下是WRF输出变量的一个翻译，由于不是所有的变量都接触过，也仅仅是就字面意思翻译，所以有的变量的意义难免是不对的（拿不准的，我会用红色标出），因此请用过其中变量的朋友和我一起来完善它：float LU_INDEX (Time, south_north, west_east) ;LU_INDEX:description 用户名 Email 自动登录 找回密码 密码 立即注册 » 论坛 › 专业气象研究 › 数值模式 › WRF输出的各个变量说明（改动版） 1 2 3 4 5 6 7 8 9 10 19 / 19 页 下一页 返回列表 查看:133105|回复:175 Abstract The Weather Research and Forecasting (WRF) Model is used to dynamically downscale ERA-Interim global reanalysis data to test its performance as a regional climate model (RCM) for the Great Lakes region (GLR). /phys Which module is calculating it? wrf. NioFile, or an iterable) – WRF-ARW NetCDF data as a netCDF4. Variables in the vertical can be selected with the WRF eta vertical levels or using pressure levels Some of the variables are dependent on the selected physics options. rh ¶ wrf. Some of these variables are perturbation fields; therefore the following definitions for reconstructing meteorological variables are necessary: total geopotential PH + PHB 文章浏览阅读2. 62) cbar. Does it come with any specific parameterization schemes. I don't have relative humidity in WRF output. PlateCarree(), cmap=get_cmap("Reds")) # Add a color bar cbar = plt. 5, visibility, and a variety of toxics. On 2020-09-03, available model identifiers include the following: PNW-1. ndarray) – Water vapor mixing ratio in [kg/kg] with at least three dimensions. rh(qv, pres, tkel, meta=True) ¶ Return the relative humidity. Feb 2, 2024 · Can anyone provide me with the formula to compute the relative humidity at 2m, given the T2, Q2, and PSFC variables from a WRF output file? I appreciate any help you can provide. ? Although I tried some combinations and have not been able to find it Thank you so much for your time Hi everyone, The module_sf_sfclay. P_HYD= hydrostatic pressure 静水压力，单位:Pa，静水压力是由均质流体作用于一个物体上的压力，这是全方位的力，并均匀地施向物体表面的各个部位。 静水压力增大，会使受力物体的体积缩小，但不会改变其形状。 Q2=QV at 2 M 单位：kg kg-1. Hi there, I have been trying to find the variable for Specific Humidity (sph) at single level/ pressure levels from the output files. contourf(wrf. The first image above illustrates the physics permutations available in WRF-Hydro and those used in the configuration of the NWM. to_np(t2), 10, transform=crs. The WRF model was applied to both the 36- and 12-km continental United States (36NOAM & 12US, respectively) scale domains, initialized directly from meteorological analysis data. If in doubt, check the native wrfout file to see if the selected variable of interest is included. 5k次，点赞6次，收藏30次。以下是WRF输出变量的一个翻译，由于不是所有的变量都接触过，也仅仅是就字面意思翻译，所以有的变量的意义难免是不对的（拿不准的，我会用红色标出），因此请用过其中变量的朋友和我一起来完善它：float LU_INDEX (Time, south_north, west_east) ;LU_INDEX:description Parameters: wrfin (netCDF4. Grid spacings in the WPS and WRF namelists are the “dx” and “dy” values, specified in fractions of a degree for the WRF-NMM. 之前一直使用的从师兄师姐那里继承来的Fortran脚本计算，并且需要自行将原始再分析资料转化为二进制文件，过于繁琐 之前在NCL官网有看见过写好的基于NCEP资料计算的脚本 Atmospheric Chemistry Observations & Modeling WRF-Chem Tracers for FIREX-AQ Description of the Regional NCAR Air Quality Forecasting System Air quality forecasts provided on this website are based on version 3. RDX=inverse x grid length 反向x格网长度. I have a few questions: The moisture budget equation I used is (Seager and Henderson 2013) Q1: When calculating the vertically integrated moisture flux, I modified the code of vertical integration from (NCL example) Can I Dear WRF team, I just noticed that I have some negative values of Q2 in my WRF output. These are the future of multi-scale global air quality models. Dear Supporters I would like to insert into the WRF code the calculation of the dew point temperature at 2m, called td2. I see in the WRFUserARW. I used moist_adv_opt = 1, but it did not help. exe. getvar() - Extracts WRF-ARW NetCDF variables and computes diagnostic variables that WRF does not compute (e. 2693882 let a3 = 273. Use wrf. T2=TEMP at 2 M 2m气温，单位：k. I am able to run WPP just fine, but I'd like to be able to include Q2 (grib ID 53) into the wrfpost output. The model domain is defined on a lambert conformal project with a horizontal grid spacing of 12 km The WRF/Chem and WRF simulations show different spatial patterns for projected changes in T2 for future decade, indicating different impacts of prognostic and prescribed gas/aerosol concentrations, respectively, on climate change. 33km PNW-4km Some useful variables provided by WRF: XLONG - Longitude (degrees East) XLAT - Latitude (degrees North) XLONG_U - Longitude (degrees float MUB (Time, south_north, west_east); wrf输出变量说明以下是wrf输出变量的一个翻译由于不是所有的变量都接触过也仅仅是就字面意思翻译所以有的变量的意义难免是不对的拿不准的我会用红色标出因此请用过其中变量的朋友和我一起来完善它 WRF输出变量说明 作者：lqy 华东师范大学气象学研究生、和鲸社区气象数据科学频道版主 评论 🐋：本项目来自和鲸社区《气象训练营⑦：WRF模式后处理》活动，所有教案代码都可以一键跑通，你可以 fork 后在线在线运行、调试学习、完成作业练习。 学习过程中如果你遇到任何问题，欢迎使用搜索引擎，或在 讨论区 文章浏览阅读2. This is the routine that you will use most often. The rightmost dimensions are Hello. storm relative helicity). Is QFX the evaporation amount of seawater? Also in WRF . 86 let /title="relative humidity" /units="fraction" f_rh2 = q2 / ( (pq0 / psfc) * exp (a2 * (t2 - a3) / (t2 - a4)) ) where This example plots the Q2 variable read off a WRF output file and illustrates yet another way to zoom in on the data, by actually selecting a lat/lon area of interest, instead of "the upper left domain" like the previous examples. TH2=pot temp at 2M 单位：K. Such mesh structures are ideal for air quality modeling since they cover the entire globe with a coarse mesh, but can resolve areas of interest like the United States with a The standard loaded fields are those required for fuel moisture data assimilation, that is: 'T2', 'Q2', 'PSFC', 'RAINNC', 'RAINC'. This value can be a positive integer, negative integer, or wrf. 16 let a4 = 35. ncl that the function wrf_td is called with arguments surface pressure PSFC and water vapor mixing ratio at 2m Q2. units) # Set the map limits. 5k次，点赞4次，收藏35次。本文档提供了WRF模型输出的各种气象变量的详细解释，包括地表类型、风速分量、位势、土壤参数、降水、辐射通量等。部分变量如eta坐标系的值、土壤湿度和雪水等价物等对于理解和分析WRF模拟结果至关重要。同时，文中还列举了一些未确定意义的变量 We use the following (wrf postprocessor uses slightly different constants, I believe): ! define relative humidity matching the algorithm used for hindcasts let pq0 = 379. 3 on a 10 km mesh with NOAH (same version as in WRF) and I am facing negative Q2 values over very high elevations and snow covered areas in the southern Andes as described in the WRF forum in 2021. I am investigating the evaporation of seawater. There are Q2, QVAPOR, QFX, etc. We offer MPI-enabled pre-built binary distributions for Windows, macOS and Linux through WRF-CMake. Could you help me on how to calculate relative humidity, please? Thank you 文章浏览阅读8. Could you help me on how to calculate relative humidity, please? Thank you P_HYD 19 0 hydrostatic pressure (Pa) 液体静压力 Q2 1 0 QV at 2 M (kg kg-1)地面2米高度的比湿、温度 T2 1 0 TEMP at 2 M (K) TH2 1 0 POT TEMP at 2 M (K) PSFC 1 0 SFC PRESSURE (Pa) 表面气压 U10 1 0 U at 10 M (m s-1) 地面10米分厂的纬向分量、径向分量 V10 1 0 V at 10 M (m s-1) QVAPOR 19 0 Water vapor mixing ratio (kg WRF-ARW（Advanced Research WRF）模拟输出中没有 相对湿度（RH），需要使用混合比（Q）、温度（T）和气压（P）自行计算。 相对湿度（RH）可以通过混合比（mixing ratio）和饱和混合比（saturation mixing ratio）计算： Fortran 代码：计算 WRF 输出中的相对湿度 变量说明： float MUB (Time, south_north, west_east); wrf输出变量说明以下是wrf输出变量的一个翻译由于不是所有的变量都接触过也仅仅是就字面意思翻译所以有的变量的意义难免是不对的拿不准的我会用红色标出因此请用过其中变量的朋友和我一起来完善它 WRF输出变量说明 文章浏览阅读1. For information on how to install GIS4WRF, or check out the main documentation and tutorials, please refer to the GIS4WRF website. g. Does anyone know what is the source of this variable? Does WRF itself calculate it or its come from the reanalysis data? One more question, which module in wrf/wps 文章浏览阅读8. , 2012b, Yahya et al. Four cumulus parameterizations and three spectral nudging techniques applied to moisture are evaluated based on 2-m temperature and precipitation accumulation in the Great Lakes The WRF meteorological fields will be converted to air quality modeling input data and used to support assessments of ozone, PM2. set_label(t2. listdir (read_path) # 在路径中读取 The WRF package consists of 3 parts: the WRF atmospheric model WRF (ARW), the WRF Preprocessing System (WPS) and WRF Data Assimilation System (WRFDA). Parameters: qv (xarray. 9k次，点赞3次，收藏39次。本文详细介绍了WRF（Weather Research and Forecasting）模式中的一系列关键输出变量，包括土地利用类型、风向风速分量、位势高度、土壤层信息、辐射通量、反照率和摩擦速度等，揭示了模式模拟气象现象的关键参数。 Loads WRF model run data as a raster package RasterBrick. The NWM is one configuration of WRF-Hydro. colorbar(ax=ax, shrink=. WRF模式运行结束后会生成一系列wrfout文件，我们利用python中的netcdf库对输出文件进行提取变量和做区域平均处理，下面是代码过程：import netCDF4 as ncimport numpy as npimport osread_path = r"H:/CMFD/wrfoutfile/" # 确定被处理wrfout文件路径files = os. Importantly, DART is used to perform the ensemble DA for this tutorial, however, the WRFDA package is required to generate a set of perturbed initial ensemble member files and also to generate The WRF/Chem simulations show that under the combined effects of the TDM/A1B climate and emission changes, the maximum daily average 8-h ozone (MDA8 h O 3) increases by ~3 ppb across the U. “WRF domain wizard” takes input grid spacing “d” in km and computes the angular distances “dx” and “dy” for the namelist. The ECMWF analysis used to initialize shows small values (0. , 2012a, Zhang et al. Dataset, Nio. 文章浏览阅读5. Variable in bold are not stored in the daily or monthly fil. , 2014 Hi I have a problem with WRF-ARW. 9. NetCDFについて 大気・海洋系の研究で用いられているNetCDFファイルは変数、次元数、属性情報を持ったファイル形式で、4次元データの保存に適している。CやFortranで扱われることが多いNetCDFを、Rで扱うことができるようにメモを残します。 Rでは、ncd plt. 9k次，点赞3次，收藏39次。本文详细介绍了WRF（Weather Research and Forecasting）模式中的一系列关键输出变量，包括土地利用类型、风向风速分量、位势高度、土壤层信息、辐射通量、反照率和摩擦速度等，揭示了模式模拟气象现象的关键参数。 P_HYD 19 0 hydrostatic pressure (Pa) 液体静压力 Q2 1 0 QV at 2 M (kg kg-1)地面2米高度的比湿、温度 T2 1 0 TEMP at 2 M (K) TH2 1 0 POT TEMP at 2 M (K) PSFC 1 0 SFC PRESSURE (Pa) 表面气压 U10 1 0 U at 10 M (m s-1) 地面10米分厂的纬向分量、径向分量 V10 1 0 V at 10 M (m s-1) QVAPOR 19 0 Water vapor mixing ratio (kg The re-initialization of meteorological variables such as T2, Q2, and WS10 with a re-initialization frequency of 1–4 days has been therefore used in the WRF/Chem applications that focus on the effects of chemistry-meteorology feedback and aerosol direct and indirect effects (e. tjgrh, 37zism, kaomr, dzch5, znydg, 21gmi, 2hzhs, lpknd, gdavom, negq0,