Forecast: The basics
Diese Karteikarten lernenKostenlos · Spaced Repetition · iPhone, Android, Mac & Web
Alle Karten
1
Numerical model is a
computer program designed to simulate some real system
2
In meteorology a numerical model is used to forecast the weather process called a
Numerical Weather Prediction (NWP)
3
Numerical Weather Prediction (NWP) models are based on
laws of PHYSICS
4
(NWP) Equations based on laws of PHYSICS are integrated
FORWARD in time to simulate changes in the atmosphere
5
Parameterization
used to estimate the effects of important processes that CANNOT be predicted directly by the NWP model
6
A parameterization estimates the effect of a process using variable that can be
PREDICTED by the model
7
Most models (NWP) CANNOT
Predict Individual clouds
8
Primary GOAL of NWP is
to forecast the effects of clouds and precipitation production
9
NWP model MUST include a ____________ _______________ to attempt to forecast the effect of clouds based on the other variables predicted by the model
CLOUD PARAMETERIZATION
10
Twin supercomputers
Dogwood and Cactus are the newest additions to NOAA's weather and climate operational supercomputing system
11
NWP Model Components (INPUT DATA)
1. Surface observations
2. Rawinsode observations
3. Satellite data
4. Radar data
5. Profiler observations
6. Aircraft observations
2. Rawinsode observations
3. Satellite data
4. Radar data
5. Profiler observations
6. Aircraft observations
12
Initialization
the process of taking data and preparing it for input into a numerical model
13
Data from different sources and times may contain errors, so must _________ ________________
blend together
14
NWP (Initialization-Previous Runs) Use short-term (3, 6, or 12 hours) forecast from
previous run model
15
Some initialization schemes (NPW) use PREVIOUS MODEL RUNS to act as
"FIRST GUESS" about the status of the atmosphere
16
(NWP) Initialization then adds in data at appropriate times and places and
"nudges" (i.e., modifies) the previous model forecast as it integrates up to the current time
17
The result (of ADDING DATA) is a
physically consistent data set that is used as the initial conditions for the NWP model
18
Initialization: Continued Process
1. Quality Control
2. Data Assimilation
3. Generate initial analysis fields
2. Data Assimilation
3. Generate initial analysis fields
19
Quality Control
Identifies obvious errors in input data
20
Data Assimilation
Combine data from different sources
21
Generate initial analysis fields
(i.e., conditions at time t=0 in forecast run)
Mehr Karteikarten: Informatik
ITEC 110: Information Technology and CybersecurityInformatik · EnglischmackNetwork Security and Cryptography QuizInformatik · EnglischDiandreiHDL and Assembly Language Midterm ExamInformatik · EnglischDiandreiDistributed Computing ParadigmInformatik · Englisch—Griffith—mixed prelims updated drei yuInformatik · EnglischDiandreiSYO-601 CH1Informatik · EnglischAnthonyParts and functions of TSInformatik · EnglischDekanoCCNA 1InformatikManethelFundamental ConceptsInformatik · Englisch—Griffith—1.2.3 SOFTWARE DEVELOPMENTInformatik · EnglischSabs2023Topic 2, Data I/O Functions slide 3Informatik · EnglischClementZusammenfassungen V1 - V3Informatik · Deutschronny
Lerne diese Decks in der App
Kostenlos auf iPhone, Android, Mac und im Web. Füge jedes Deck mit einem Tipp zu deinem Konto hinzu.
